./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0158-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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-0158-1.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 8faa7ab505618d5a6c508309045d02d3235f2a80 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 03:30:54,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:30:54,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:30:54,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:30:54,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:30:54,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:30:54,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:30:54,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:30:54,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:30:54,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:30:54,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:30:54,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:30:54,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:30:54,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:30:54,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:30:54,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:30:54,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:30:54,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:30:54,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:30:54,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:30:54,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:30:54,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:30:54,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:30:54,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:30:54,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:30:54,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:30:54,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:30:54,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:30:54,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:30:54,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:30:54,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:30:54,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:30:54,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:30:54,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:30:54,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:30:54,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:30:54,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:30:54,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:30:54,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:30:54,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:30:54,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:30:54,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:30:54,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:30:54,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:30:54,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:30:54,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:30:54,275 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:30:54,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:30:54,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:30:54,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:30:54,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:30:54,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:30:54,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:30:54,276 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:30:54,277 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:30:54,277 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:30:54,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:30:54,278 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:30:54,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:30:54,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:30:54,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:30:54,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:30:54,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:30:54,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:30:54,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:30:54,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:30:54,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:30:54,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:30:54,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:30:54,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:30:54,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8faa7ab505618d5a6c508309045d02d3235f2a80 [2020-10-26 03:30:54,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:30:54,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:30:54,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:30:54,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:30:54,764 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:30:54,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-1.i [2020-10-26 03:30:54,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee0fb0de/87ebc68777b34aff91f60027d3184071/FLAGb9ab9c170 [2020-10-26 03:30:55,663 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:30:55,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-1.i [2020-10-26 03:30:55,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee0fb0de/87ebc68777b34aff91f60027d3184071/FLAGb9ab9c170 [2020-10-26 03:30:55,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee0fb0de/87ebc68777b34aff91f60027d3184071 [2020-10-26 03:30:55,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:30:55,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:30:55,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:30:55,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:30:55,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:30:55,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:30:55" (1/1) ... [2020-10-26 03:30:55,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e396ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:55, skipping insertion in model container [2020-10-26 03:30:55,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:30:55" (1/1) ... [2020-10-26 03:30:55,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:30:56,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:30:56,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:30:56,427 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:30:56,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:30:56,549 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:30:56,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56 WrapperNode [2020-10-26 03:30:56,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:30:56,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:30:56,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:30:56,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:30:56,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (1/1) ... [2020-10-26 03:30:56,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:30:56,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:30:56,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:30:56,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:30:56,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (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 [2020-10-26 03:30:56,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:30:56,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:30:56,689 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 03:30:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-26 03:30:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-26 03:30:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-26 03:30:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-26 03:30:56,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-26 03:30:56,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:30:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:30:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 03:30:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-26 03:30:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-26 03:30:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 03:30:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:30:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:30:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:30:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:30:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:30:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:30:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:30:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:30:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:30:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:30:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:30:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:30:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:30:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:30:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:30:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:30:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:30:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-26 03:30:56,703 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-26 03:30:56,703 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-26 03:30:56,703 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-26 03:30:56,703 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-26 03:30:56,703 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:30:56,704 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:30:56,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:30:56,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:30:56,704 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:30:56,704 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:30:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:30:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:30:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:30:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:30:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:30:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:30:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:30:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:30:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:30:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:30:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:30:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:30:56,707 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:30:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:30:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:30:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:30:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:30:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:30:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:30:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:30:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:30:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:30:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:30:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:30:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:30:56,710 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:30:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:30:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:30:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:30:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:30:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:30:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:30:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:30:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:30:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:30:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:30:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:30:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:30:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:30:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:30:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:30:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:30:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:30:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:30:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:30:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:30:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:30:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:30:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:30:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:30:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:30:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:30:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:30:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:30:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:30:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:30:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:30:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:30:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:30:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:30:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:30:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:30:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:30:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:30:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:30:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:30:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:30:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:30:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:30:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:30:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:30:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:30:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:30:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:30:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:30:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:30:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:30:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:30:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:30:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:30:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:30:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 03:30:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 03:30:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:30:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:30:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:30:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:30:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:30:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:30:57,280 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:30:57,280 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-26 03:30:57,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:57 BoogieIcfgContainer [2020-10-26 03:30:57,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:30:57,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:30:57,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:30:57,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:30:57,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:30:55" (1/3) ... [2020-10-26 03:30:57,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3501260c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:30:57, skipping insertion in model container [2020-10-26 03:30:57,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:56" (2/3) ... [2020-10-26 03:30:57,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3501260c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:30:57, skipping insertion in model container [2020-10-26 03:30:57,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:57" (3/3) ... [2020-10-26 03:30:57,293 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-1.i [2020-10-26 03:30:57,306 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:30:57,312 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-10-26 03:30:57,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-10-26 03:30:57,351 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:30:57,351 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:30:57,351 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:30:57,351 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:30:57,352 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:30:57,352 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:30:57,352 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:30:57,352 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:30:57,367 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-26 03:30:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:30:57,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:57,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:57,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-26 03:30:57,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:57,384 INFO L82 PathProgramCache]: Analyzing trace with hash 808796717, now seen corresponding path program 1 times [2020-10-26 03:30:57,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:57,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121761079] [2020-10-26 03:30:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:57,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:57,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121761079] [2020-10-26 03:30:57,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:57,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:57,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206578605] [2020-10-26 03:30:57,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:57,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:57,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:57,750 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 4 states. [2020-10-26 03:30:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:57,830 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-26 03:30:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:30:57,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:30:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:57,842 INFO L225 Difference]: With dead ends: 23 [2020-10-26 03:30:57,842 INFO L226 Difference]: Without dead ends: 20 [2020-10-26 03:30:57,844 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 [2020-10-26 03:30:57,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-26 03:30:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-26 03:30:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-26 03:30:57,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-10-26 03:30:57,884 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 7 [2020-10-26 03:30:57,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:57,885 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-10-26 03:30:57,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-10-26 03:30:57,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:30:57,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:57,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:57,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:30:57,887 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-26 03:30:57,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:57,888 INFO L82 PathProgramCache]: Analyzing trace with hash 808796718, now seen corresponding path program 1 times [2020-10-26 03:30:57,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:57,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715258154] [2020-10-26 03:30:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:57,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:58,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715258154] [2020-10-26 03:30:58,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:58,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:58,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326191873] [2020-10-26 03:30:58,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:58,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:58,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:58,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:58,009 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 4 states. [2020-10-26 03:30:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:58,053 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-10-26 03:30:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:30:58,054 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:30:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:58,054 INFO L225 Difference]: With dead ends: 17 [2020-10-26 03:30:58,055 INFO L226 Difference]: Without dead ends: 17 [2020-10-26 03:30:58,056 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 [2020-10-26 03:30:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-26 03:30:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-26 03:30:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-26 03:30:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2020-10-26 03:30:58,061 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 7 [2020-10-26 03:30:58,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:58,061 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2020-10-26 03:30:58,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:58,062 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-10-26 03:30:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 03:30:58,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:58,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:58,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:30:58,063 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-26 03:30:58,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:58,064 INFO L82 PathProgramCache]: Analyzing trace with hash 96456748, now seen corresponding path program 1 times [2020-10-26 03:30:58,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:58,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804261238] [2020-10-26 03:30:58,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:58,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804261238] [2020-10-26 03:30:58,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:58,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:30:58,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766334033] [2020-10-26 03:30:58,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:30:58,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:58,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:30:58,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:30:58,188 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 6 states. [2020-10-26 03:30:58,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:58,262 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-26 03:30:58,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:30:58,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-26 03:30:58,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:58,264 INFO L225 Difference]: With dead ends: 16 [2020-10-26 03:30:58,264 INFO L226 Difference]: Without dead ends: 16 [2020-10-26 03:30:58,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:30:58,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-26 03:30:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-26 03:30:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-26 03:30:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-26 03:30:58,269 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 10 [2020-10-26 03:30:58,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:58,269 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-26 03:30:58,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:30:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-26 03:30:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:30:58,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:58,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:58,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 03:30:58,271 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-26 03:30:58,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:58,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1304808048, now seen corresponding path program 1 times [2020-10-26 03:30:58,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:58,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384566972] [2020-10-26 03:30:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:58,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384566972] [2020-10-26 03:30:58,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:58,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:30:58,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496907229] [2020-10-26 03:30:58,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:30:58,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:58,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:30:58,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:30:58,382 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 6 states. [2020-10-26 03:30:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:58,458 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-10-26 03:30:58,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:30:58,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-26 03:30:58,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:58,460 INFO L225 Difference]: With dead ends: 15 [2020-10-26 03:30:58,460 INFO L226 Difference]: Without dead ends: 15 [2020-10-26 03:30:58,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:30:58,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-26 03:30:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-26 03:30:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-26 03:30:58,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-26 03:30:58,465 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2020-10-26 03:30:58,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:58,466 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-26 03:30:58,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:30:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-26 03:30:58,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 03:30:58,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:58,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:58,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 03:30:58,468 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-26 03:30:58,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:58,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1794343762, now seen corresponding path program 1 times [2020-10-26 03:30:58,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:58,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362749739] [2020-10-26 03:30:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:58,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362749739] [2020-10-26 03:30:58,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:58,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:30:58,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159306834] [2020-10-26 03:30:58,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:30:58,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:58,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:30:58,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:30:58,587 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2020-10-26 03:30:58,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:58,647 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-26 03:30:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:30:58,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-26 03:30:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:58,649 INFO L225 Difference]: With dead ends: 14 [2020-10-26 03:30:58,649 INFO L226 Difference]: Without dead ends: 14 [2020-10-26 03:30:58,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:30:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-26 03:30:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-26 03:30:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-26 03:30:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-10-26 03:30:58,653 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 12 [2020-10-26 03:30:58,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:58,653 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-10-26 03:30:58,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:30:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-10-26 03:30:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 03:30:58,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:58,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:58,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 03:30:58,655 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2020-10-26 03:30:58,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:58,655 INFO L82 PathProgramCache]: Analyzing trace with hash 209918291, now seen corresponding path program 1 times [2020-10-26 03:30:58,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:58,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231328683] [2020-10-26 03:30:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:58,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231328683] [2020-10-26 03:30:58,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:58,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:30:58,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821049274] [2020-10-26 03:30:58,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 03:30:58,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:58,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 03:30:58,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-26 03:30:58,830 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 7 states. [2020-10-26 03:30:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:58,927 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-10-26 03:30:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:30:58,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-26 03:30:58,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:58,929 INFO L225 Difference]: With dead ends: 13 [2020-10-26 03:30:58,930 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 03:30:58,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:30:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 03:30:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 03:30:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 03:30:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 03:30:58,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-26 03:30:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:58,932 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 03:30:58,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 03:30:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 03:30:58,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 03:30:58,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 03:30:58,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:30:58 BoogieIcfgContainer [2020-10-26 03:30:58,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:30:58,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:30:58,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:30:58,942 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:30:58,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:57" (3/4) ... [2020-10-26 03:30:58,948 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 03:30:58,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2020-10-26 03:30:58,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-26 03:30:58,967 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-10-26 03:30:58,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-10-26 03:30:58,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2020-10-26 03:30:58,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2020-10-26 03:30:58,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-26 03:30:58,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2020-10-26 03:30:58,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-26 03:30:58,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-26 03:30:58,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 03:30:58,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 03:30:59,027 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:30:59,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:30:59,031 INFO L168 Benchmark]: Toolchain (without parser) took 3108.05 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 24.2 MB in the beginning and 50.1 MB in the end (delta: -25.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:59,032 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 39.8 MB. Free memory was 18.2 MB in the beginning and 18.1 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:30:59,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.22 ms. Allocated memory is still 48.2 MB. Free memory was 23.6 MB in the beginning and 24.3 MB in the end (delta: -721.9 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:59,034 INFO L168 Benchmark]: Boogie Preprocessor took 62.06 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 22.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:59,036 INFO L168 Benchmark]: RCFGBuilder took 667.98 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.0 MB in the beginning and 35.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:59,037 INFO L168 Benchmark]: TraceAbstraction took 1656.65 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.1 MB in the beginning and 23.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:59,038 INFO L168 Benchmark]: Witness Printer took 85.72 ms. Allocated memory is still 71.3 MB. Free memory was 23.0 MB in the beginning and 50.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:59,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 39.8 MB. Free memory was 18.2 MB in the beginning and 18.1 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 617.22 ms. Allocated memory is still 48.2 MB. Free memory was 23.6 MB in the beginning and 24.3 MB in the end (delta: -721.9 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.06 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 22.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 667.98 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.0 MB in the beginning and 35.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1656.65 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.1 MB in the beginning and 23.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Witness Printer took 85.72 ms. Allocated memory is still 71.3 MB. Free memory was 23.0 MB in the beginning and 50.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 46 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 61 SDslu, 74 SDs, 0 SdLazy, 170 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 4378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 correct! Received shutdown request...