./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 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/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 0.1.25-906a4fb [2020-10-19 18:01:13,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:01:13,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:01:13,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:01:13,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:01:13,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:01:13,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:01:13,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:01:13,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:01:13,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:01:13,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:01:13,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:01:13,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:01:13,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:01:13,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:01:13,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:01:13,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:01:13,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:01:13,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:01:13,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:01:13,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:01:13,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:01:13,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:01:13,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:01:13,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:01:13,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:01:13,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:01:13,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:01:13,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:01:13,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:01:13,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:01:13,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:01:13,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:01:13,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:01:13,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:01:13,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:01:13,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:01:13,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:01:13,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:01:13,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:01:13,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:01:13,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:01:13,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:01:13,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:01:13,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:01:13,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:01:13,710 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:01:13,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:01:13,710 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:01:13,710 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:01:13,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:01:13,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:01:13,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:01:13,714 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:01:13,715 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:01:13,715 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:01:13,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:01:13,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:01:13,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:01:13,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:01:13,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:01:13,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:01:13,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:01:13,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:01:13,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:01:13,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:01:13,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:01:13,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:01:13,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:01:13,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:01:13,720 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 [2020-10-19 18:01:14,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:01:14,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:01:14,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:01:14,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:01:14,058 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:01:14,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-3.i [2020-10-19 18:01:14,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6e58a50/fe4e0ff07f0443b3842c7c0ce9966c70/FLAGd92e8c083 [2020-10-19 18:01:14,705 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:01:14,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-3.i [2020-10-19 18:01:14,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6e58a50/fe4e0ff07f0443b3842c7c0ce9966c70/FLAGd92e8c083 [2020-10-19 18:01:14,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6e58a50/fe4e0ff07f0443b3842c7c0ce9966c70 [2020-10-19 18:01:14,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:01:14,999 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:01:15,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:01:15,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:01:15,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:01:15,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:01:14" (1/1) ... [2020-10-19 18:01:15,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741c8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15, skipping insertion in model container [2020-10-19 18:01:15,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:01:14" (1/1) ... [2020-10-19 18:01:15,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:01:15,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:01:15,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:01:15,503 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:01:15,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:01:15,638 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:01:15,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15 WrapperNode [2020-10-19 18:01:15,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:01:15,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:01:15,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:01:15,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:01:15,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (1/1) ... [2020-10-19 18:01:15,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:01:15,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:01:15,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:01:15,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:01:15,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (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 18:01:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:01:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:01:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:01:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:01:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:01:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:01:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:01:15,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:01:15,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:01:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:01:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:01:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:01:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:01:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:01:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:01:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:01:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:01:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:01:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:01:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:01:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:01:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:01:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:01:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:01:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:01:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:01:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:01:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:01:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:01:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:01:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:01:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:01:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:01:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:01:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:01:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:01:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:01:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:01:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:01:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:01:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:01:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:01:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:01:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:01:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:01:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:01:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:01:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:01:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:01:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:01:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:01:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:01:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:01:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:01:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:01:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:01:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:01:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:01:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:01:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:01:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:01:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:01:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:01:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:01:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:01:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:01:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:01:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:01:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:01:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:01:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:01:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:01:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:01:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:01:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:01:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:01:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:01:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:01:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:01:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:01:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:01:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:01:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:01:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:01:15,813 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:01:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:01:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:01:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:01:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:01:15,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:01:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:01:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:01:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:01:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:01:15,815 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:01:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:01:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:01:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:01:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:01:15,816 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:01:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:01:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:01:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:01:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:01:15,817 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:01:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:01:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:01:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-19 18:01:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-10-19 18:01:15,818 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2020-10-19 18:01:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-19 18:01:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-19 18:01:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2020-10-19 18:01:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-19 18:01:15,819 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-10-19 18:01:15,820 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2020-10-19 18:01:15,820 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2020-10-19 18:01:15,820 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-19 18:01:15,820 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-10-19 18:01:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2020-10-19 18:01:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2020-10-19 18:01:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2020-10-19 18:01:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2020-10-19 18:01:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2020-10-19 18:01:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2020-10-19 18:01:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2020-10-19 18:01:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-19 18:01:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2020-10-19 18:01:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2020-10-19 18:01:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2020-10-19 18:01:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2020-10-19 18:01:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2020-10-19 18:01:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2020-10-19 18:01:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2020-10-19 18:01:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-19 18:01:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2020-10-19 18:01:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2020-10-19 18:01:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2020-10-19 18:01:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2020-10-19 18:01:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2020-10-19 18:01:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2020-10-19 18:01:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2020-10-19 18:01:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure index [2020-10-19 18:01:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2020-10-19 18:01:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2020-10-19 18:01:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2020-10-19 18:01:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2020-10-19 18:01:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2020-10-19 18:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2020-10-19 18:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2020-10-19 18:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2020-10-19 18:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2020-10-19 18:01:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2020-10-19 18:01:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2020-10-19 18:01:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2020-10-19 18:01:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2020-10-19 18:01:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2020-10-19 18:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2020-10-19 18:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:01:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:01:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:01:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:01:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:01:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:01:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:01:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:01:16,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:01:16,412 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:01:16,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:16 BoogieIcfgContainer [2020-10-19 18:01:16,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:01:16,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:01:16,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:01:16,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:01:16,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:01:14" (1/3) ... [2020-10-19 18:01:16,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317c9e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:01:16, skipping insertion in model container [2020-10-19 18:01:16,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:15" (2/3) ... [2020-10-19 18:01:16,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317c9e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:01:16, skipping insertion in model container [2020-10-19 18:01:16,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:16" (3/3) ... [2020-10-19 18:01:16,426 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-3.i [2020-10-19 18:01:16,440 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:01:16,452 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-10-19 18:01:16,467 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-10-19 18:01:16,492 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:01:16,493 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:01:16,493 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:01:16,493 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:01:16,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:01:16,494 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:01:16,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:01:16,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:01:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-19 18:01:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:01:16,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:16,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:16,532 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]=== [2020-10-19 18:01:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:16,538 INFO L82 PathProgramCache]: Analyzing trace with hash -538157542, now seen corresponding path program 1 times [2020-10-19 18:01:16,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:16,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999585341] [2020-10-19 18:01:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:16,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:16,815 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 18:01:16,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999585341] [2020-10-19 18:01:16,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:16,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:01:16,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628429519] [2020-10-19 18:01:16,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:01:16,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:16,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:01:16,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:01:16,848 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2020-10-19 18:01:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:16,969 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2020-10-19 18:01:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:01:16,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:01:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:16,982 INFO L225 Difference]: With dead ends: 34 [2020-10-19 18:01:16,983 INFO L226 Difference]: Without dead ends: 31 [2020-10-19 18:01:16,985 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 [2020-10-19 18:01:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-19 18:01:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-19 18:01:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-19 18:01:17,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-10-19 18:01:17,032 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 7 [2020-10-19 18:01:17,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:17,033 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-10-19 18:01:17,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:01:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-10-19 18:01:17,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:01:17,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:17,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:17,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:01:17,036 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]=== [2020-10-19 18:01:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:17,037 INFO L82 PathProgramCache]: Analyzing trace with hash -538157541, now seen corresponding path program 1 times [2020-10-19 18:01:17,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:17,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837543254] [2020-10-19 18:01:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,146 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 18:01:17,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837543254] [2020-10-19 18:01:17,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:17,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:01:17,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517978940] [2020-10-19 18:01:17,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:01:17,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:17,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:01:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:01:17,153 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 4 states. [2020-10-19 18:01:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:17,241 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-10-19 18:01:17,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:01:17,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:01:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:17,243 INFO L225 Difference]: With dead ends: 26 [2020-10-19 18:01:17,243 INFO L226 Difference]: Without dead ends: 26 [2020-10-19 18:01:17,244 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 [2020-10-19 18:01:17,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-19 18:01:17,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-19 18:01:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-19 18:01:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2020-10-19 18:01:17,249 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 7 [2020-10-19 18:01:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:17,250 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2020-10-19 18:01:17,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:01:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-10-19 18:01:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:01:17,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:17,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:17,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:01:17,252 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]=== [2020-10-19 18:01:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash 408834944, now seen corresponding path program 1 times [2020-10-19 18:01:17,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:17,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098726048] [2020-10-19 18:01:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,426 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 18:01:17,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098726048] [2020-10-19 18:01:17,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:17,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:01:17,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784838484] [2020-10-19 18:01:17,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:01:17,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:17,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:01:17,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:01:17,433 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 6 states. [2020-10-19 18:01:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:17,571 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-10-19 18:01:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:01:17,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-19 18:01:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:17,573 INFO L225 Difference]: With dead ends: 25 [2020-10-19 18:01:17,573 INFO L226 Difference]: Without dead ends: 25 [2020-10-19 18:01:17,575 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 [2020-10-19 18:01:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-19 18:01:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-19 18:01:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-19 18:01:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-10-19 18:01:17,582 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 13 [2020-10-19 18:01:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:17,583 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-10-19 18:01:17,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:01:17,583 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-10-19 18:01:17,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:01:17,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:17,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:17,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:01:17,586 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]=== [2020-10-19 18:01:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:17,586 INFO L82 PathProgramCache]: Analyzing trace with hash -211018557, now seen corresponding path program 1 times [2020-10-19 18:01:17,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:17,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803893350] [2020-10-19 18:01:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,776 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 18:01:17,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803893350] [2020-10-19 18:01:17,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:17,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:01:17,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700383965] [2020-10-19 18:01:17,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:01:17,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:17,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:01:17,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:01:17,779 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 6 states. [2020-10-19 18:01:17,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:17,874 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-10-19 18:01:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:01:17,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-19 18:01:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:17,876 INFO L225 Difference]: With dead ends: 24 [2020-10-19 18:01:17,876 INFO L226 Difference]: Without dead ends: 24 [2020-10-19 18:01:17,877 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 [2020-10-19 18:01:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-19 18:01:17,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-19 18:01:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-19 18:01:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-10-19 18:01:17,881 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 14 [2020-10-19 18:01:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:17,882 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-10-19 18:01:17,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:01:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-10-19 18:01:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:01:17,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:17,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:17,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:01:17,884 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]=== [2020-10-19 18:01:17,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:17,884 INFO L82 PathProgramCache]: Analyzing trace with hash 2048359394, now seen corresponding path program 1 times [2020-10-19 18:01:17,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:17,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429927353] [2020-10-19 18:01:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:17,979 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 18:01:17,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429927353] [2020-10-19 18:01:17,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:17,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:01:17,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285456481] [2020-10-19 18:01:17,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:01:17,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:17,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:01:17,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:01:17,982 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 6 states. [2020-10-19 18:01:18,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:18,063 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-19 18:01:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:01:18,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-19 18:01:18,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:18,064 INFO L225 Difference]: With dead ends: 23 [2020-10-19 18:01:18,065 INFO L226 Difference]: Without dead ends: 23 [2020-10-19 18:01:18,065 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 [2020-10-19 18:01:18,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-19 18:01:18,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-19 18:01:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-19 18:01:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2020-10-19 18:01:18,070 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 15 [2020-10-19 18:01:18,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:18,070 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2020-10-19 18:01:18,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:01:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-10-19 18:01:18,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-19 18:01:18,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:18,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:18,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:01:18,073 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]=== [2020-10-19 18:01:18,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:18,073 INFO L82 PathProgramCache]: Analyzing trace with hash -925368155, now seen corresponding path program 1 times [2020-10-19 18:01:18,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:18,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839282371] [2020-10-19 18:01:18,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:18,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:18,161 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 18:01:18,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839282371] [2020-10-19 18:01:18,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:18,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:01:18,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560756287] [2020-10-19 18:01:18,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:01:18,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:18,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:01:18,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:01:18,165 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 7 states. [2020-10-19 18:01:18,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:18,270 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-19 18:01:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:01:18,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-19 18:01:18,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:18,272 INFO L225 Difference]: With dead ends: 22 [2020-10-19 18:01:18,273 INFO L226 Difference]: Without dead ends: 22 [2020-10-19 18:01:18,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:01:18,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-19 18:01:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-19 18:01:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-19 18:01:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-19 18:01:18,277 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2020-10-19 18:01:18,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:18,278 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-19 18:01:18,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:01:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-19 18:01:18,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:01:18,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:18,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:18,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:01:18,280 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]=== [2020-10-19 18:01:18,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:18,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1378358340, now seen corresponding path program 1 times [2020-10-19 18:01:18,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:18,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007624033] [2020-10-19 18:01:18,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:18,381 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 18:01:18,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007624033] [2020-10-19 18:01:18,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:18,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:01:18,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389056717] [2020-10-19 18:01:18,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:01:18,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:18,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:01:18,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:01:18,384 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 7 states. [2020-10-19 18:01:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:18,488 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-10-19 18:01:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:01:18,488 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-19 18:01:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:18,489 INFO L225 Difference]: With dead ends: 21 [2020-10-19 18:01:18,489 INFO L226 Difference]: Without dead ends: 21 [2020-10-19 18:01:18,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:01:18,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-19 18:01:18,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-19 18:01:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-19 18:01:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-10-19 18:01:18,494 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 17 [2020-10-19 18:01:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:18,494 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-10-19 18:01:18,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:01:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-10-19 18:01:18,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 18:01:18,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:18,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:18,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:01:18,496 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]=== [2020-10-19 18:01:18,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:18,497 INFO L82 PathProgramCache]: Analyzing trace with hash -220564345, now seen corresponding path program 1 times [2020-10-19 18:01:18,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:18,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139888924] [2020-10-19 18:01:18,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:01:18,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:01:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:01:18,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:01:18,568 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:01:18,569 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:01:18,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:01:18,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:01:18 BoogieIcfgContainer [2020-10-19 18:01:18,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:01:18,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:01:18,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:01:18,614 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:01:18,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:16" (3/4) ... [2020-10-19 18:01:18,617 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:01:18,673 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:01:18,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:01:18,677 INFO L168 Benchmark]: Toolchain (without parser) took 3682.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.6 MB in the beginning and 853.8 MB in the end (delta: 100.8 MB). Peak memory consumption was 245.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:18,678 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:18,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:18,680 INFO L168 Benchmark]: Boogie Preprocessor took 70.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:18,680 INFO L168 Benchmark]: RCFGBuilder took 704.97 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: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:18,681 INFO L168 Benchmark]: TraceAbstraction took 2195.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 853.8 MB in the end (delta: 193.6 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:18,682 INFO L168 Benchmark]: Witness Printer took 60.55 ms. Allocated memory is still 1.2 GB. Free memory is still 853.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:18,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 639.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 704.97 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: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2195.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 853.8 MB in the end (delta: 193.6 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. * Witness Printer took 60.55 ms. Allocated memory is still 1.2 GB. Free memory is still 853.8 MB. There was no memory consumed. Max. memory is 11.5 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: 2.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.7s 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...