./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-properties/splice-1.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-properties/splice-1.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 22d654ad48908d2db90206c3276d568dc9029be1 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:26:28,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:26:28,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:26:28,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:26:28,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:26:28,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:26:28,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:26:28,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:26:28,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:26:28,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:26:28,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:26:28,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:26:28,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:26:28,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:26:28,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:26:28,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:26:28,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:26:28,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:26:28,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:26:28,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:26:28,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:26:28,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:26:28,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:26:28,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:26:28,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:26:28,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:26:28,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:26:28,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:26:28,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:26:28,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:26:28,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:26:28,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:26:28,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:26:28,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:26:28,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:26:28,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:26:28,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:26:28,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:26:28,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:26:28,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:26:28,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:26:28,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-19 18:26:28,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:26:28,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:26:28,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:26:28,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:26:28,820 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:26:28,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:26:28,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:26:28,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:26:28,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:26:28,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:26:28,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:26:28,822 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:26:28,822 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:26:28,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:26:28,823 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:26:28,823 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:26:28,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:26:28,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:26:28,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:26:28,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:26:28,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:26:28,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:26:28,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:26:28,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:26:28,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:26:28,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:26:28,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:26:28,827 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 -> 22d654ad48908d2db90206c3276d568dc9029be1 [2020-10-19 18:26:29,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:26:29,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:26:29,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:26:29,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:26:29,149 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:26:29,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-1.i [2020-10-19 18:26:29,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11dae3ef/b60e7fa1b3b64341a7342b0b9d40f122/FLAGbe3d5a8ff [2020-10-19 18:26:29,715 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:26:29,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i [2020-10-19 18:26:29,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11dae3ef/b60e7fa1b3b64341a7342b0b9d40f122/FLAGbe3d5a8ff [2020-10-19 18:26:30,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11dae3ef/b60e7fa1b3b64341a7342b0b9d40f122 [2020-10-19 18:26:30,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:26:30,070 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:26:30,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:26:30,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:26:30,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:26:30,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b298be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30, skipping insertion in model container [2020-10-19 18:26:30,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:26:30,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:26:30,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:26:30,554 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:26:30,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:26:30,652 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:26:30,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30 WrapperNode [2020-10-19 18:26:30,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:26:30,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:26:30,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:26:30,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:26:30,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... [2020-10-19 18:26:30,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:26:30,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:26:30,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:26:30,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:26:30,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:26:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:26:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:26:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:26:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:26:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:26:30,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:26:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:26:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:26:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-19 18:26:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:26:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:26:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:26:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:26:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:26:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:26:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:26:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:26:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:26:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:26:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:26:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:26:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:26:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:26:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:26:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:26:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:26:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:26:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:26:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:26:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:26:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:26:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:26:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:26:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:26:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:26:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:26:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:26:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:26:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:26:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:26:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:26:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:26:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:26:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:26:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:26:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:26:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:26:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:26:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:26:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:26:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:26:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:26:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:26:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:26:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:26:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:26:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:26:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:26:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:26:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:26:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:26:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:26:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:26:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:26:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:26:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:26:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:26:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:26:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:26:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:26:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:26:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:26:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:26:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:26:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:26:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:26:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:26:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:26:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:26:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:26:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:26:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:26:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:26:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:26:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:26:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:26:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:26:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:26:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:26:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:26:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:26:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:26:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:26:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:26:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:26:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:26:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:26:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:26:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:26:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:26:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:26:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:26:30,822 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:26:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:26:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:26:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:26:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:26:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:26:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:26:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:26:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:26:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:26:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:26:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:26:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:26:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:26:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:26:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:26:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:26:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-19 18:26:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:26:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:26:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:26:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:26:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:26:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:26:30,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:26:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:26:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:26:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:26:31,217 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-19 18:26:31,495 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:26:31,496 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-19 18:26:31,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:26:31 BoogieIcfgContainer [2020-10-19 18:26:31,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:26:31,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:26:31,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:26:31,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:26:31,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:26:30" (1/3) ... [2020-10-19 18:26:31,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d53833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:26:31, skipping insertion in model container [2020-10-19 18:26:31,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:30" (2/3) ... [2020-10-19 18:26:31,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d53833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:26:31, skipping insertion in model container [2020-10-19 18:26:31,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:26:31" (3/3) ... [2020-10-19 18:26:31,514 INFO L111 eAbstractionObserver]: Analyzing ICFG splice-1.i [2020-10-19 18:26:31,527 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:26:31,538 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-10-19 18:26:31,549 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-10-19 18:26:31,571 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:26:31,572 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:26:31,572 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:26:31,572 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:26:31,572 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:26:31,572 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:26:31,573 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:26:31,573 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:26:31,593 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-10-19 18:26:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:26:31,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:31,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:31,605 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_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, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-10-19 18:26:31,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:31,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1115108894, now seen corresponding path program 1 times [2020-10-19 18:26:31,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:31,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982314833] [2020-10-19 18:26:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:31,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:31,851 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 18:26:31,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982314833] [2020-10-19 18:26:31,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:31,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:26:31,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214837942] [2020-10-19 18:26:31,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:26:31,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:31,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:26:31,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:26:31,880 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2020-10-19 18:26:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:32,104 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-10-19 18:26:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:26:32,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 18:26:32,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:32,117 INFO L225 Difference]: With dead ends: 86 [2020-10-19 18:26:32,117 INFO L226 Difference]: Without dead ends: 79 [2020-10-19 18:26:32,119 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 18:26:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-19 18:26:32,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-19 18:26:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-19 18:26:32,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2020-10-19 18:26:32,169 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 10 [2020-10-19 18:26:32,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:32,169 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2020-10-19 18:26:32,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:26:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2020-10-19 18:26:32,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:26:32,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:32,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:32,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:26:32,172 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_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, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-10-19 18:26:32,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:32,172 INFO L82 PathProgramCache]: Analyzing trace with hash -208672984, now seen corresponding path program 1 times [2020-10-19 18:26:32,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:32,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726005356] [2020-10-19 18:26:32,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:32,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:32,306 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 18:26:32,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726005356] [2020-10-19 18:26:32,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:32,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:26:32,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564112809] [2020-10-19 18:26:32,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:26:32,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:32,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:26:32,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:26:32,314 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand 5 states. [2020-10-19 18:26:32,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:32,581 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2020-10-19 18:26:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:26:32,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-19 18:26:32,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:32,584 INFO L225 Difference]: With dead ends: 86 [2020-10-19 18:26:32,584 INFO L226 Difference]: Without dead ends: 86 [2020-10-19 18:26:32,585 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 18:26:32,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-19 18:26:32,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2020-10-19 18:26:32,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-19 18:26:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2020-10-19 18:26:32,597 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 11 [2020-10-19 18:26:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:32,598 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2020-10-19 18:26:32,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:26:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2020-10-19 18:26:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:26:32,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:32,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:32,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:26:32,600 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_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, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-10-19 18:26:32,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:32,601 INFO L82 PathProgramCache]: Analyzing trace with hash -208672983, now seen corresponding path program 1 times [2020-10-19 18:26:32,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:32,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17937586] [2020-10-19 18:26:32,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:32,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:32,710 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 18:26:32,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17937586] [2020-10-19 18:26:32,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:32,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:26:32,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684682052] [2020-10-19 18:26:32,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:26:32,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:32,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:26:32,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:26:32,714 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand 5 states. [2020-10-19 18:26:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:32,956 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2020-10-19 18:26:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:26:32,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-19 18:26:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:32,958 INFO L225 Difference]: With dead ends: 94 [2020-10-19 18:26:32,958 INFO L226 Difference]: Without dead ends: 94 [2020-10-19 18:26:32,959 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 18:26:32,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-19 18:26:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 87. [2020-10-19 18:26:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-19 18:26:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2020-10-19 18:26:32,969 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 11 [2020-10-19 18:26:32,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:32,969 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2020-10-19 18:26:32,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:26:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2020-10-19 18:26:32,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:26:32,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:32,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:32,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:26:32,972 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_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, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2020-10-19 18:26:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:32,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1759143106, now seen corresponding path program 1 times [2020-10-19 18:26:32,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:32,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434417204] [2020-10-19 18:26:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:26:32,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:26:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:26:33,014 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:26:33,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:26:33,044 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:26:33,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:26:33,058 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:26:33,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:26:33 BoogieIcfgContainer [2020-10-19 18:26:33,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:26:33,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:26:33,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:26:33,076 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:26:33,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:26:31" (3/4) ... [2020-10-19 18:26:33,080 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:26:33,091 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:26:33,179 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:26:33,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:26:33,183 INFO L168 Benchmark]: Toolchain (without parser) took 3116.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.6 MB in the beginning and 912.8 MB in the end (delta: 41.8 MB). Peak memory consumption was 172.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:33,184 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:33,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:33,186 INFO L168 Benchmark]: Boogie Preprocessor took 75.03 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:33,187 INFO L168 Benchmark]: RCFGBuilder took 771.77 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: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:33,188 INFO L168 Benchmark]: TraceAbstraction took 1572.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 912.8 MB in the end (delta: 134.6 MB). Peak memory consumption was 134.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:33,189 INFO L168 Benchmark]: Witness Printer took 104.15 ms. Allocated memory is still 1.2 GB. Free memory is still 912.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:33,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 582.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.03 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 771.77 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: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1572.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 912.8 MB in the end (delta: 134.6 MB). Peak memory consumption was 134.6 MB. Max. memory is 11.5 GB. * Witness Printer took 104.15 ms. Allocated memory is still 1.2 GB. Free memory is still 912.8 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) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L534] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L555] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L555] COND TRUE a->h == 3 [L555] 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. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 178 SDtfs, 233 SDslu, 58 SDs, 0 SdLazy, 395 SolverSat, 41 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=89occurred 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, 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, 1577 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...