./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 5fbdf5bf 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/list-ext-properties/simple-ext.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8dfe6e301265e265404ce5be2c9f54235040b69e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 16:03:08,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 16:03:08,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 16:03:08,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 16:03:08,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 16:03:08,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 16:03:08,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 16:03:08,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 16:03:08,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 16:03:08,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 16:03:08,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 16:03:08,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 16:03:08,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 16:03:08,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 16:03:08,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 16:03:08,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 16:03:08,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 16:03:08,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 16:03:08,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 16:03:08,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 16:03:08,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 16:03:08,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 16:03:08,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 16:03:08,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 16:03:08,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 16:03:08,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 16:03:08,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 16:03:08,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 16:03:08,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 16:03:08,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 16:03:08,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 16:03:08,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 16:03:08,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 16:03:08,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 16:03:08,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 16:03:08,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 16:03:08,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 16:03:08,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 16:03:08,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 16:03:08,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 16:03:08,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 16:03:08,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-08-30 16:03:08,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 16:03:08,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 16:03:08,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 16:03:08,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 16:03:08,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 16:03:08,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 16:03:08,696 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 16:03:08,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 16:03:08,697 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 16:03:08,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 16:03:08,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 16:03:08,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 16:03:08,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 16:03:08,698 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 16:03:08,699 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 16:03:08,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 16:03:08,699 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 16:03:08,699 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 16:03:08,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 16:03:08,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 16:03:08,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 16:03:08,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 16:03:08,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 16:03:08,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 16:03:08,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 16:03:08,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 16:03:08,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 16:03:08,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 16:03:08,702 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dfe6e301265e265404ce5be2c9f54235040b69e [2021-08-30 16:03:09,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 16:03:09,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 16:03:09,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 16:03:09,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 16:03:09,035 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 16:03:09,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-08-30 16:03:09,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba56b449a/dc6a8c3f84bc4e899fc3d7c103471f80/FLAGe505d6da0 [2021-08-30 16:03:09,551 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 16:03:09,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-08-30 16:03:09,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba56b449a/dc6a8c3f84bc4e899fc3d7c103471f80/FLAGe505d6da0 [2021-08-30 16:03:09,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba56b449a/dc6a8c3f84bc4e899fc3d7c103471f80 [2021-08-30 16:03:09,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 16:03:09,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 16:03:09,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 16:03:09,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 16:03:09,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 16:03:09,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:03:09" (1/1) ... [2021-08-30 16:03:09,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450575b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:09, skipping insertion in model container [2021-08-30 16:03:09,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:03:09" (1/1) ... [2021-08-30 16:03:09,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 16:03:09,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 16:03:10,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-08-30 16:03:10,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 16:03:10,267 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 16:03:10,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-08-30 16:03:10,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 16:03:10,330 INFO L208 MainTranslator]: Completed translation [2021-08-30 16:03:10,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10 WrapperNode [2021-08-30 16:03:10,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 16:03:10,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 16:03:10,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 16:03:10,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 16:03:10,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 16:03:10,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 16:03:10,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 16:03:10,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 16:03:10,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (1/1) ... [2021-08-30 16:03:10,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 16:03:10,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 16:03:10,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 16:03:10,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 16:03:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 16:03:10,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 16:03:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-08-30 16:03:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-30 16:03:10,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-30 16:03:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-30 16:03:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-30 16:03:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-30 16:03:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-08-30 16:03:10,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 16:03:10,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-30 16:03:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-08-30 16:03:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-08-30 16:03:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-08-30 16:03:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-08-30 16:03:10,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-30 16:03:10,506 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-30 16:03:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-30 16:03:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-30 16:03:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-30 16:03:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-30 16:03:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-30 16:03:10,507 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-30 16:03:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-30 16:03:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-30 16:03:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-30 16:03:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-30 16:03:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-30 16:03:10,508 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-30 16:03:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-30 16:03:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-30 16:03:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-30 16:03:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-30 16:03:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-30 16:03:10,509 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-30 16:03:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-30 16:03:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-30 16:03:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-30 16:03:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-30 16:03:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-30 16:03:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-30 16:03:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-30 16:03:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-30 16:03:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-30 16:03:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-30 16:03:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-30 16:03:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-30 16:03:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-30 16:03:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-30 16:03:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-30 16:03:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-30 16:03:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-30 16:03:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-30 16:03:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-30 16:03:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-30 16:03:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-30 16:03:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-30 16:03:10,514 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-30 16:03:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-30 16:03:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-30 16:03:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-30 16:03:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-30 16:03:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-30 16:03:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-30 16:03:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-30 16:03:10,517 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-30 16:03:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-30 16:03:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-30 16:03:10,518 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-30 16:03:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-30 16:03:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-30 16:03:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-30 16:03:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-30 16:03:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-30 16:03:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-30 16:03:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-30 16:03:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-30 16:03:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-30 16:03:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-30 16:03:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-30 16:03:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-30 16:03:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-30 16:03:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-30 16:03:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-30 16:03:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-30 16:03:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-30 16:03:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-30 16:03:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-30 16:03:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-30 16:03:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-30 16:03:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-30 16:03:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-30 16:03:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-30 16:03:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-30 16:03:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-30 16:03:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-30 16:03:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-30 16:03:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-30 16:03:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-30 16:03:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-30 16:03:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-30 16:03:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-30 16:03:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-30 16:03:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-30 16:03:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-30 16:03:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-08-30 16:03:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 16:03:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-30 16:03:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-30 16:03:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-30 16:03:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-30 16:03:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-30 16:03:10,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 16:03:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 16:03:10,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 16:03:10,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 16:03:10,838 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-08-30 16:03:10,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 16:03:10,927 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-30 16:03:10,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:03:10 BoogieIcfgContainer [2021-08-30 16:03:10,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 16:03:10,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 16:03:10,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 16:03:10,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 16:03:10,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:03:09" (1/3) ... [2021-08-30 16:03:10,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2a025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:03:10, skipping insertion in model container [2021-08-30 16:03:10,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:03:10" (2/3) ... [2021-08-30 16:03:10,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2a025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:03:10, skipping insertion in model container [2021-08-30 16:03:10,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:03:10" (3/3) ... [2021-08-30 16:03:10,941 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2021-08-30 16:03:10,946 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 16:03:10,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-08-30 16:03:10,989 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 16:03:10,997 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 16:03:10,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-08-30 16:03:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 57 states have internal predecessors, (66), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-30 16:03:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-30 16:03:11,029 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:11,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:11,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr6REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-08-30 16:03:11,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:11,036 INFO L82 PathProgramCache]: Analyzing trace with hash 269519918, now seen corresponding path program 1 times [2021-08-30 16:03:11,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 16:03:11,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135668209] [2021-08-30 16:03:11,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:11,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 16:03:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:11,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 16:03:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:11,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 16:03:11,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135668209] [2021-08-30 16:03:11,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135668209] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:11,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:11,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 16:03:11,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923998514] [2021-08-30 16:03:11,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 16:03:11,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 16:03:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 16:03:11,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 16:03:11,349 INFO L87 Difference]: Start difference. First operand has 63 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 57 states have internal predecessors, (66), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:11,520 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-08-30 16:03:11,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 16:03:11,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-08-30 16:03:11,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:11,528 INFO L225 Difference]: With dead ends: 63 [2021-08-30 16:03:11,529 INFO L226 Difference]: Without dead ends: 56 [2021-08-30 16:03:11,530 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 16:03:11,537 INFO L928 BasicCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.26ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131.33ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:11,538 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 124 Unknown, 0 Unchecked, 5.26ms Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 131.33ms Time] [2021-08-30 16:03:11,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-08-30 16:03:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-08-30 16:03:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.75) internal successors, (56), 52 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2021-08-30 16:03:11,570 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 10 [2021-08-30 16:03:11,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:11,571 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2021-08-30 16:03:11,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:11,571 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2021-08-30 16:03:11,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 16:03:11,573 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:11,573 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:11,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 16:03:11,575 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr6REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-08-30 16:03:11,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:11,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1309651495, now seen corresponding path program 1 times [2021-08-30 16:03:11,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 16:03:11,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319389806] [2021-08-30 16:03:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:11,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 16:03:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 16:03:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:11,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:11,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 16:03:11,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319389806] [2021-08-30 16:03:11,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319389806] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:11,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:11,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 16:03:11,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622800898] [2021-08-30 16:03:11,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 16:03:11,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 16:03:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 16:03:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 16:03:11,702 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:11,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:11,836 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2021-08-30 16:03:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 16:03:11,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-08-30 16:03:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:11,837 INFO L225 Difference]: With dead ends: 74 [2021-08-30 16:03:11,837 INFO L226 Difference]: Without dead ends: 74 [2021-08-30 16:03:11,838 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.61ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 16:03:11,839 INFO L928 BasicCegarLoop]: 3 mSDtfsCounter, 94 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.54ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.86ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:11,839 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 10 Invalid, 164 Unknown, 0 Unchecked, 2.54ms Time], IncrementalHoareTripleChecker [21 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 112.86ms Time] [2021-08-30 16:03:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-08-30 16:03:11,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 60. [2021-08-30 16:03:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 56 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2021-08-30 16:03:11,846 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 12 [2021-08-30 16:03:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:11,846 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2021-08-30 16:03:11,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2021-08-30 16:03:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 16:03:11,847 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:11,847 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:11,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 16:03:11,847 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr7REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-08-30 16:03:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1309651496, now seen corresponding path program 1 times [2021-08-30 16:03:11,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 16:03:11,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937832826] [2021-08-30 16:03:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:11,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 16:03:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 16:03:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 16:03:11,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 16:03:11,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 16:03:11,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937832826] [2021-08-30 16:03:11,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937832826] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 16:03:11,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 16:03:11,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 16:03:11,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816837627] [2021-08-30 16:03:11,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 16:03:11,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 16:03:11,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 16:03:11,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 16:03:11,923 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 16:03:12,067 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2021-08-30 16:03:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 16:03:12,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-08-30 16:03:12,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 16:03:12,069 INFO L225 Difference]: With dead ends: 81 [2021-08-30 16:03:12,069 INFO L226 Difference]: Without dead ends: 81 [2021-08-30 16:03:12,069 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.46ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 16:03:12,070 INFO L928 BasicCegarLoop]: 3 mSDtfsCounter, 99 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.36ms IncrementalHoareTripleChecker+Time [2021-08-30 16:03:12,070 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 10 Invalid, 171 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [19 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 124.36ms Time] [2021-08-30 16:03:12,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-08-30 16:03:12,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 69. [2021-08-30 16:03:12,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.48) internal successors, (74), 65 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:12,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2021-08-30 16:03:12,076 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 12 [2021-08-30 16:03:12,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 16:03:12,077 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2021-08-30 16:03:12,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 16:03:12,077 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2021-08-30 16:03:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 16:03:12,078 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 16:03:12,078 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 16:03:12,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 16:03:12,078 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr12ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-08-30 16:03:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 16:03:12,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1341518452, now seen corresponding path program 1 times [2021-08-30 16:03:12,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 16:03:12,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294978743] [2021-08-30 16:03:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 16:03:12,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 16:03:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 16:03:12,097 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 16:03:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 16:03:12,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 16:03:12,131 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 16:03:12,132 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr12ASSERT_VIOLATIONMEMORY_LEAK (20 of 21 remaining) [2021-08-30 16:03:12,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION (19 of 21 remaining) [2021-08-30 16:03:12,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION (18 of 21 remaining) [2021-08-30 16:03:12,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION (17 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION (16 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION (15 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION (14 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION (13 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION (12 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION (11 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION (10 of 21 remaining) [2021-08-30 16:03:12,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION (9 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION (8 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION (7 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION (6 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION (5 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION (4 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17ASSERT_VIOLATIONMEMORY_FREE (3 of 21 remaining) [2021-08-30 16:03:12,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18ASSERT_VIOLATIONMEMORY_FREE (2 of 21 remaining) [2021-08-30 16:03:12,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19ASSERT_VIOLATIONMEMORY_FREE (1 of 21 remaining) [2021-08-30 16:03:12,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20ENSURES_VIOLATIONMEMORY_LEAK (0 of 21 remaining) [2021-08-30 16:03:12,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 16:03:12,142 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 16:03:12,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:03:12 BoogieIcfgContainer [2021-08-30 16:03:12,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 16:03:12,171 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 16:03:12,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 16:03:12,171 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 16:03:12,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:03:10" (3/4) ... [2021-08-30 16:03:12,173 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-30 16:03:15,715 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 16:03:15,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 16:03:15,717 INFO L158 Benchmark]: Toolchain (without parser) took 5788.12ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 31.0MB in the beginning and 36.5MB in the end (delta: -5.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-08-30 16:03:15,718 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 16:03:15,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.38ms. Allocated memory is still 54.5MB. Free memory was 30.8MB in the beginning and 28.3MB in the end (delta: 2.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-08-30 16:03:15,719 INFO L158 Benchmark]: Boogie Preprocessor took 89.92ms. Allocated memory is still 54.5MB. Free memory was 28.3MB in the beginning and 25.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 16:03:15,720 INFO L158 Benchmark]: RCFGBuilder took 511.15ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 25.7MB in the beginning and 38.1MB in the end (delta: -12.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-08-30 16:03:15,720 INFO L158 Benchmark]: TraceAbstraction took 1234.31ms. Allocated memory is still 73.4MB. Free memory was 37.4MB in the beginning and 38.6MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 16:03:15,720 INFO L158 Benchmark]: Witness Printer took 3545.10ms. Allocated memory is still 73.4MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 16:03:15,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.38ms. Allocated memory is still 54.5MB. Free memory was 30.8MB in the beginning and 28.3MB in the end (delta: 2.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.92ms. Allocated memory is still 54.5MB. Free memory was 28.3MB in the beginning and 25.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.15ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 25.7MB in the beginning and 38.1MB in the end (delta: -12.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1234.31ms. Allocated memory is still 73.4MB. Free memory was 37.4MB in the beginning and 38.6MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3545.10ms. Allocated memory is still 73.4MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 551]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) VAL [a={-1:0}] [L534] List t; [L535] List p = a; [L536] int i = 0; VAL [a={-1:0}, i=0, p={-1:0}] [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 30 && __VERIFIER_nondet_int()=0, p={-1:0}] [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i VAL [a={-1:0}, i=0, p={-1:0}] [L546] p->n = 0 VAL [a={-1:0}, i=0, p={-1:0}] [L547] p = a [L548] i = 0 VAL [a={-1:0}, i=0, p={-1:0}] [L549] COND TRUE p!=0 VAL [a={-1:0}, i=0, p={-1:0}] [L550] EXPR p->h VAL [a={-1:0}, i=0, p={-1:0}, p->h=0] [L550] COND TRUE p->h != 1 [L551] reach_error() VAL [a={-1:0}, i=0, p={-1:0}] - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 558]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 558]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 82 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 1153.31ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 20.85ms, AutomataDifference: 507.38ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.52ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 368.55ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 295.60ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 13 mSDtfsCounter, 416 mSolverCounterSat, 9.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 89.52ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 32.15ms AutomataMinimizationTime, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.21ms SsaConstructionTime, 67.92ms SatisfiabilityAnalysisTime, 302.51ms InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-30 16:03:15,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...