./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0158-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/memsafety/test-0158-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7e4a97fa815d265dd112866b503fcff377f0496 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 05:54:06,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:54:06,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:54:06,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:54:06,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:54:06,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:54:06,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:54:06,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:54:06,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:54:06,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:54:06,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:54:06,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:54:06,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:54:06,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:54:06,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:54:06,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:54:06,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:54:06,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:54:06,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:54:06,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:54:06,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:54:06,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:54:06,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:54:06,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:54:06,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:54:06,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:54:06,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:54:06,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:54:06,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:54:06,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:54:06,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:54:06,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:54:06,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:54:06,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:54:06,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:54:06,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:54:06,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:54:06,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:54:06,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:54:06,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:54:06,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:54:06,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:54:06,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:54:06,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:54:06,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:54:06,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:54:06,828 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:54:06,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:54:06,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:54:06,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:54:06,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:54:06,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:54:06,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:54:06,830 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:54:06,830 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:54:06,830 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:54:06,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:54:06,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:54:06,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:54:06,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:54:06,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:54:06,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:54:06,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:54:06,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:54:06,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:54:06,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:54:06,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:54:06,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:54:06,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:54:06,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:54:06,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7e4a97fa815d265dd112866b503fcff377f0496 [2020-10-20 05:54:07,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:54:07,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:54:07,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:54:07,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:54:07,104 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:54:07,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-3.i [2020-10-20 05:54:07,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/412830f6f/c94ccaadb50e47c39f02b98a5181473d/FLAG8ea230c5e [2020-10-20 05:54:07,882 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:54:07,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-3.i [2020-10-20 05:54:07,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/412830f6f/c94ccaadb50e47c39f02b98a5181473d/FLAG8ea230c5e [2020-10-20 05:54:08,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/412830f6f/c94ccaadb50e47c39f02b98a5181473d [2020-10-20 05:54:08,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:54:08,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:54:08,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:54:08,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:54:08,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:54:08,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73862822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08, skipping insertion in model container [2020-10-20 05:54:08,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:54:08,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:54:08,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:54:08,653 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:54:08,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:54:08,816 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:54:08,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08 WrapperNode [2020-10-20 05:54:08,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:54:08,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:54:08,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:54:08,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:54:08,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (1/1) ... [2020-10-20 05:54:08,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:54:08,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:54:08,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:54:08,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:54:08,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (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 [2020-10-20 05:54:08,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:54:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:54:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:54:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:54:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:54:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:54:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:54:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:54:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:54:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:54:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:54:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:54:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:54:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:54:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:54:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:54:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:54:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:54:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:54:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:54:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:54:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:54:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:54:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:54:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:54:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:54:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:54:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:54:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:54:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:54:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:54:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:54:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:54:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:54:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:54:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:54:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:54:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:54:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:54:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:54:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:54:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:54:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:54:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:54:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:54:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:54:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:54:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:54:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:54:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:54:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:54:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:54:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:54:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:54:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:54:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:54:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:54:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:54:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:54:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:54:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:54:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:54:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:54:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:54:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:54:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:54:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:54:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:54:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:54:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:54:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:54:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:54:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:54:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:54:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:54:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:54:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:54:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:54:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:54:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:54:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:54:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:54:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:54:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:54:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:54:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:54:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:54:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:54:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:54:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:54:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:54:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:54:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:54:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:54:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:54:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:54:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:54:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:54:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:54:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:54:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:54:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:54:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:54:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:54:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:54:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-20 05:54:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-10-20 05:54:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2020-10-20 05:54:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-20 05:54:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-20 05:54:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2020-10-20 05:54:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-20 05:54:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-20 05:54:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-10-20 05:54:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2020-10-20 05:54:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-20 05:54:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-10-20 05:54:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2020-10-20 05:54:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2020-10-20 05:54:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2020-10-20 05:54:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2020-10-20 05:54:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2020-10-20 05:54:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2020-10-20 05:54:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-10-20 05:54:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-20 05:54:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2020-10-20 05:54:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2020-10-20 05:54:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2020-10-20 05:54:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-20 05:54:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2020-10-20 05:54:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2020-10-20 05:54:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2020-10-20 05:54:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-20 05:54:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2020-10-20 05:54:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2020-10-20 05:54:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2020-10-20 05:54:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2020-10-20 05:54:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2020-10-20 05:54:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2020-10-20 05:54:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2020-10-20 05:54:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure index [2020-10-20 05:54:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2020-10-20 05:54:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2020-10-20 05:54:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2020-10-20 05:54:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2020-10-20 05:54:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2020-10-20 05:54:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2020-10-20 05:54:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2020-10-20 05:54:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2020-10-20 05:54:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2020-10-20 05:54:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2020-10-20 05:54:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2020-10-20 05:54:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2020-10-20 05:54:09,050 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2020-10-20 05:54:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2020-10-20 05:54:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2020-10-20 05:54:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:54:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:54:09,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:54:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:54:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 05:54:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:54:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:54:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 05:54:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:54:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 05:54:09,651 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:54:09,651 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 05:54:09,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:09 BoogieIcfgContainer [2020-10-20 05:54:09,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:54:09,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:54:09,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:54:09,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:54:09,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:54:08" (1/3) ... [2020-10-20 05:54:09,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb09d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:09, skipping insertion in model container [2020-10-20 05:54:09,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:08" (2/3) ... [2020-10-20 05:54:09,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb09d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:09, skipping insertion in model container [2020-10-20 05:54:09,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:09" (3/3) ... [2020-10-20 05:54:09,664 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-3.i [2020-10-20 05:54:09,677 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:54:09,685 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-10-20 05:54:09,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-10-20 05:54:09,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:54:09,722 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:54:09,722 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:54:09,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:54:09,723 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:54:09,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:54:09,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:54:09,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:54:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-20 05:54:09,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:54:09,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:09,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:09,754 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:09,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:09,761 INFO L82 PathProgramCache]: Analyzing trace with hash -538157542, now seen corresponding path program 1 times [2020-10-20 05:54:09,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:09,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191862238] [2020-10-20 05:54:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:10,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191862238] [2020-10-20 05:54:10,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:10,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:54:10,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948108897] [2020-10-20 05:54:10,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:54:10,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:10,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:54:10,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:10,082 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2020-10-20 05:54:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:10,192 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2020-10-20 05:54:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:54:10,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:54:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:10,203 INFO L225 Difference]: With dead ends: 34 [2020-10-20 05:54:10,204 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 05:54:10,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:10,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 05:54:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 05:54:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 05:54:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-10-20 05:54:10,237 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 7 [2020-10-20 05:54:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:10,237 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-10-20 05:54:10,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:54:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-10-20 05:54:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 05:54:10,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:10,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:10,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 05:54:10,239 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:10,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:10,240 INFO L82 PathProgramCache]: Analyzing trace with hash -538157541, now seen corresponding path program 1 times [2020-10-20 05:54:10,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:10,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178721683] [2020-10-20 05:54:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:10,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178721683] [2020-10-20 05:54:10,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:10,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:54:10,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205344870] [2020-10-20 05:54:10,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:54:10,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:10,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:54:10,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:10,368 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 4 states. [2020-10-20 05:54:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:10,487 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-10-20 05:54:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:54:10,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 05:54:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:10,489 INFO L225 Difference]: With dead ends: 26 [2020-10-20 05:54:10,489 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 05:54:10,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:54:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 05:54:10,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 05:54:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 05:54:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-10-20 05:54:10,503 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 7 [2020-10-20 05:54:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:10,504 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-10-20 05:54:10,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:54:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-10-20 05:54:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:54:10,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:10,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:10,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 05:54:10,506 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:10,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:10,507 INFO L82 PathProgramCache]: Analyzing trace with hash 408834944, now seen corresponding path program 1 times [2020-10-20 05:54:10,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:10,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615239819] [2020-10-20 05:54:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:10,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615239819] [2020-10-20 05:54:10,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:10,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 05:54:10,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97995889] [2020-10-20 05:54:10,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:54:10,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:10,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:54:10,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:54:10,695 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 6 states. [2020-10-20 05:54:10,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:10,821 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-10-20 05:54:10,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:54:10,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-20 05:54:10,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:10,822 INFO L225 Difference]: With dead ends: 25 [2020-10-20 05:54:10,823 INFO L226 Difference]: Without dead ends: 25 [2020-10-20 05:54:10,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:54:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-20 05:54:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-20 05:54:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-20 05:54:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-10-20 05:54:10,828 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 13 [2020-10-20 05:54:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:10,829 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-10-20 05:54:10,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:54:10,829 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-10-20 05:54:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:54:10,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:10,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:10,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 05:54:10,830 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:10,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:10,831 INFO L82 PathProgramCache]: Analyzing trace with hash -211018557, now seen corresponding path program 1 times [2020-10-20 05:54:10,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:10,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227202333] [2020-10-20 05:54:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:10,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:10,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227202333] [2020-10-20 05:54:10,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:10,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 05:54:10,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51257395] [2020-10-20 05:54:10,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:54:10,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:10,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:54:10,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:54:10,962 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 6 states. [2020-10-20 05:54:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:11,091 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-10-20 05:54:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:54:11,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 05:54:11,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:11,092 INFO L225 Difference]: With dead ends: 24 [2020-10-20 05:54:11,093 INFO L226 Difference]: Without dead ends: 24 [2020-10-20 05:54:11,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:54:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-20 05:54:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-20 05:54:11,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-20 05:54:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-10-20 05:54:11,098 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 14 [2020-10-20 05:54:11,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:11,098 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-10-20 05:54:11,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:54:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-10-20 05:54:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 05:54:11,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:11,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:11,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 05:54:11,100 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:11,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2048359394, now seen corresponding path program 1 times [2020-10-20 05:54:11,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:11,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068783587] [2020-10-20 05:54:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:11,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:11,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:11,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068783587] [2020-10-20 05:54:11,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:11,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 05:54:11,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812303570] [2020-10-20 05:54:11,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:54:11,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:11,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:54:11,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:54:11,209 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 6 states. [2020-10-20 05:54:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:11,326 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-20 05:54:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 05:54:11,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 05:54:11,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:11,328 INFO L225 Difference]: With dead ends: 23 [2020-10-20 05:54:11,328 INFO L226 Difference]: Without dead ends: 23 [2020-10-20 05:54:11,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:54:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-20 05:54:11,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-20 05:54:11,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 05:54:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-10-20 05:54:11,332 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 15 [2020-10-20 05:54:11,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:11,333 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-10-20 05:54:11,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:54:11,333 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-10-20 05:54:11,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 05:54:11,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:11,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:11,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 05:54:11,335 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:11,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:11,335 INFO L82 PathProgramCache]: Analyzing trace with hash -925368155, now seen corresponding path program 1 times [2020-10-20 05:54:11,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:11,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563356164] [2020-10-20 05:54:11,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:11,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:11,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563356164] [2020-10-20 05:54:11,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:11,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 05:54:11,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652920265] [2020-10-20 05:54:11,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 05:54:11,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:11,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 05:54:11,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:54:11,453 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 7 states. [2020-10-20 05:54:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:11,580 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-20 05:54:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 05:54:11,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-20 05:54:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:11,582 INFO L225 Difference]: With dead ends: 22 [2020-10-20 05:54:11,582 INFO L226 Difference]: Without dead ends: 22 [2020-10-20 05:54:11,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:54:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-20 05:54:11,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-20 05:54:11,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 05:54:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-20 05:54:11,588 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2020-10-20 05:54:11,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:11,588 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-20 05:54:11,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 05:54:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-20 05:54:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 05:54:11,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:11,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:11,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 05:54:11,591 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:11,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1378358340, now seen corresponding path program 1 times [2020-10-20 05:54:11,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:11,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448927946] [2020-10-20 05:54:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:11,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:54:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:54:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:54:11,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448927946] [2020-10-20 05:54:11,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:54:11,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 05:54:11,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977453807] [2020-10-20 05:54:11,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 05:54:11,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:54:11,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 05:54:11,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 05:54:11,689 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 7 states. [2020-10-20 05:54:11,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:54:11,826 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-10-20 05:54:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 05:54:11,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-20 05:54:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:54:11,828 INFO L225 Difference]: With dead ends: 21 [2020-10-20 05:54:11,829 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 05:54:11,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-20 05:54:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 05:54:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-20 05:54:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 05:54:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-10-20 05:54:11,834 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 17 [2020-10-20 05:54:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:54:11,835 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-10-20 05:54:11,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 05:54:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-10-20 05:54:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:54:11,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:54:11,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:54:11,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 05:54:11,837 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 05:54:11,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:54:11,838 INFO L82 PathProgramCache]: Analyzing trace with hash -220564345, now seen corresponding path program 1 times [2020-10-20 05:54:11,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:54:11,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807737876] [2020-10-20 05:54:11,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:54:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:54:11,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:54:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:54:11,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:54:11,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 05:54:11,916 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:54:11,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 05:54:11,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:54:11 BoogieIcfgContainer [2020-10-20 05:54:11,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:54:11,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:54:11,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:54:11,958 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:54:11,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:09" (3/4) ... [2020-10-20 05:54:11,963 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 05:54:12,051 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 05:54:12,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:54:12,055 INFO L168 Benchmark]: Toolchain (without parser) took 3892.00 ms. Allocated memory was 41.4 MB in the beginning and 61.3 MB in the end (delta: 19.9 MB). Free memory was 17.7 MB in the beginning and 23.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:12,057 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 30.9 MB. Free memory was 8.1 MB in the beginning and 8.1 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:54:12,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.68 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 16.9 MB in the beginning and 13.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:12,064 INFO L168 Benchmark]: Boogie Preprocessor took 69.30 ms. Allocated memory is still 43.5 MB. Free memory was 13.3 MB in the beginning and 10.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:12,065 INFO L168 Benchmark]: RCFGBuilder took 766.30 ms. Allocated memory was 43.5 MB in the beginning and 48.8 MB in the end (delta: 5.2 MB). Free memory was 10.1 MB in the beginning and 29.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:12,071 INFO L168 Benchmark]: TraceAbstraction took 2301.53 ms. Allocated memory was 48.8 MB in the beginning and 61.3 MB in the end (delta: 12.6 MB). Free memory was 28.7 MB in the beginning and 25.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:12,072 INFO L168 Benchmark]: Witness Printer took 94.37 ms. Allocated memory is still 61.3 MB. Free memory was 25.5 MB in the beginning and 23.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:54:12,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 30.9 MB. Free memory was 8.1 MB in the beginning and 8.1 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 649.68 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 16.9 MB in the beginning and 13.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 69.30 ms. Allocated memory is still 43.5 MB. Free memory was 13.3 MB in the beginning and 10.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 766.30 ms. Allocated memory was 43.5 MB in the beginning and 48.8 MB in the end (delta: 5.2 MB). Free memory was 10.1 MB in the beginning and 29.5 MB in the end (delta: -19.3 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2301.53 ms. Allocated memory was 48.8 MB in the beginning and 61.3 MB in the end (delta: 12.6 MB). Free memory was 28.7 MB in the beginning and 25.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. * Witness Printer took 94.37 ms. Allocated memory is still 61.3 MB. Free memory was 25.5 MB in the beginning and 23.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 655]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L642-L649] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L650] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L651] data.str.p2 = &data VAL [data={3:0}, malloc(37U)={-1:0}] [L652] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}] [L652] void *ptr = data.p0; [L653] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] EXPR data.p0 VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] free(data.p0) VAL [data={3:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L654] free(data.p0) [L655] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L655] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L655] free(ptr) VAL [data={3:0}, malloc(37U)={-1:0}, ptr={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 59 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 142 SDslu, 139 SDs, 0 SdLazy, 306 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 14 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 7507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...