./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f2222db53b1ba3adad8f3ce16bd4a15f62841c2c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:09:49,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:09:49,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:09:49,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:09:49,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:09:49,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:09:49,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:09:49,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:09:49,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:09:49,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:09:49,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:09:49,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:09:49,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:09:49,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:09:49,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:09:49,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:09:49,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:09:49,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:09:49,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:09:49,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:09:49,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:09:49,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:09:49,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:09:49,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:09:49,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:09:49,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:09:49,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:09:49,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:09:49,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:09:49,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:09:49,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:09:49,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:09:49,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:09:49,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:09:49,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:09:49,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:09:49,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:09:49,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:09:49,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:09:49,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:09:49,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:09:49,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:09:49,444 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:09:49,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:09:49,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:09:49,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:09:49,446 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:09:49,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:09:49,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:09:49,447 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:09:49,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:09:49,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:09:49,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:09:49,448 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:09:49,449 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:09:49,449 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:09:49,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:09:49,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:09:49,450 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:09:49,450 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:09:49,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:09:49,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:09:49,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:09:49,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:09:49,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:09:49,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:09:49,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:09:49,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:09:49,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:09:49,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:09:49,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2222db53b1ba3adad8f3ce16bd4a15f62841c2c [2019-11-28 20:09:49,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:09:49,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:09:49,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:09:49,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:09:49,808 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:09:49,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2019-11-28 20:09:49,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5001f687b/d68ba76d4b9d4efdb9c21fe88e7a20e4/FLAGea196d352 [2019-11-28 20:09:50,377 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:09:50,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2019-11-28 20:09:50,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5001f687b/d68ba76d4b9d4efdb9c21fe88e7a20e4/FLAGea196d352 [2019-11-28 20:09:50,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5001f687b/d68ba76d4b9d4efdb9c21fe88e7a20e4 [2019-11-28 20:09:50,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:09:50,734 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:09:50,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:09:50,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:09:50,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:09:50,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:09:50" (1/1) ... [2019-11-28 20:09:50,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c09576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:50, skipping insertion in model container [2019-11-28 20:09:50,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:09:50" (1/1) ... [2019-11-28 20:09:50,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:09:50,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:09:51,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:09:51,196 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:09:51,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:09:51,330 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:09:51,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51 WrapperNode [2019-11-28 20:09:51,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:09:51,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:09:51,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:09:51,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:09:51,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (1/1) ... [2019-11-28 20:09:51,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:09:51,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:09:51,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:09:51,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:09:51,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (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 [2019-11-28 20:09:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:09:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:09:51,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 20:09:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 20:09:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 20:09:51,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 20:09:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 20:09:51,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:09:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:09:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:09:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:09:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:09:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:09:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:09:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:09:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:09:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:09:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:09:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:09:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:09:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:09:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:09:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:09:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:09:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:09:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 20:09:51,468 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 20:09:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 20:09:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 20:09:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 20:09:51,469 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:09:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:09:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:09:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:09:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:09:51,470 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:09:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:09:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:09:51,471 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:09:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:09:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:09:51,472 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:09:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:09:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:09:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:09:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:09:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:09:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:09:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:09:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:09:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:09:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:09:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:09:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:09:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:09:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:09:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:09:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:09:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:09:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:09:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:09:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:09:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:09:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:09:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:09:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:09:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:09:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:09:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:09:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:09:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:09:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:09:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:09:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:09:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:09:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:09:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:09:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:09:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:09:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:09:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:09:51,486 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:09:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:09:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:09:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:09:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:09:51,487 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:09:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:09:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:09:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:09:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:09:51,488 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:09:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:09:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:09:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:09:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:09:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:09:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:09:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:09:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:09:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:09:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:09:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:09:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:09:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:09:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:09:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:09:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:09:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:09:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:09:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:09:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:09:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:09:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:09:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:09:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:09:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:09:51,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:09:51,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:09:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:09:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:09:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:09:51,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:09:52,083 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:09:52,084 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-28 20:09:52,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:09:52 BoogieIcfgContainer [2019-11-28 20:09:52,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:09:52,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:09:52,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:09:52,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:09:52,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:09:50" (1/3) ... [2019-11-28 20:09:52,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b7089e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:09:52, skipping insertion in model container [2019-11-28 20:09:52,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:09:51" (2/3) ... [2019-11-28 20:09:52,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b7089e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:09:52, skipping insertion in model container [2019-11-28 20:09:52,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:09:52" (3/3) ... [2019-11-28 20:09:52,096 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0158_1-3.i [2019-11-28 20:09:52,107 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:09:52,115 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-11-28 20:09:52,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-11-28 20:09:52,148 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:09:52,148 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:09:52,149 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:09:52,149 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:09:52,149 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:09:52,149 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:09:52,150 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:09:52,150 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:09:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-11-28 20:09:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:09:52,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:52,182 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:52,182 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:52,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1406256573, now seen corresponding path program 1 times [2019-11-28 20:09:52,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:52,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943183719] [2019-11-28 20:09:52,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:52,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943183719] [2019-11-28 20:09:52,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:52,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:09:52,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447402621] [2019-11-28 20:09:52,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:09:52,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:52,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:09:52,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:09:52,445 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2019-11-28 20:09:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:52,613 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-28 20:09:52,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:09:52,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:09:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:52,626 INFO L225 Difference]: With dead ends: 40 [2019-11-28 20:09:52,626 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 20:09:52,628 INFO L630 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 [2019-11-28 20:09:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 20:09:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 20:09:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 20:09:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2019-11-28 20:09:52,673 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 7 [2019-11-28 20:09:52,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:52,674 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2019-11-28 20:09:52,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:09:52,674 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2019-11-28 20:09:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:09:52,675 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:52,675 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:52,676 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:52,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:52,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1406256572, now seen corresponding path program 1 times [2019-11-28 20:09:52,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:52,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491930281] [2019-11-28 20:09:52,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:52,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491930281] [2019-11-28 20:09:52,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:52,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:09:52,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613306186] [2019-11-28 20:09:52,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:09:52,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:52,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:09:52,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:09:52,788 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 4 states. [2019-11-28 20:09:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:52,888 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-28 20:09:52,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:09:52,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:09:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:52,890 INFO L225 Difference]: With dead ends: 30 [2019-11-28 20:09:52,891 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 20:09:52,892 INFO L630 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 [2019-11-28 20:09:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 20:09:52,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 20:09:52,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 20:09:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-28 20:09:52,902 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2019-11-28 20:09:52,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:52,903 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-28 20:09:52,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:09:52,903 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-28 20:09:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:09:52,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:52,906 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:52,907 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:52,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:52,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1892987731, now seen corresponding path program 1 times [2019-11-28 20:09:52,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:52,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270139949] [2019-11-28 20:09:52,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:53,028 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270139949] [2019-11-28 20:09:53,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:53,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:53,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288713328] [2019-11-28 20:09:53,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:09:53,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:09:53,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:09:53,031 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 5 states. [2019-11-28 20:09:53,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:53,156 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2019-11-28 20:09:53,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:09:53,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-28 20:09:53,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:53,158 INFO L225 Difference]: With dead ends: 46 [2019-11-28 20:09:53,159 INFO L226 Difference]: Without dead ends: 46 [2019-11-28 20:09:53,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-28 20:09:53,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 32. [2019-11-28 20:09:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-28 20:09:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2019-11-28 20:09:53,167 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2019-11-28 20:09:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:53,167 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2019-11-28 20:09:53,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:09:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-11-28 20:09:53,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:09:53,169 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:53,169 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:53,170 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:53,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:53,170 INFO L82 PathProgramCache]: Analyzing trace with hash 2040751091, now seen corresponding path program 1 times [2019-11-28 20:09:53,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:53,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868583435] [2019-11-28 20:09:53,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:53,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868583435] [2019-11-28 20:09:53,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:53,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:53,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63935430] [2019-11-28 20:09:53,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:09:53,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:53,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:09:53,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:53,261 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2019-11-28 20:09:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:53,358 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-11-28 20:09:53,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:53,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 20:09:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:53,359 INFO L225 Difference]: With dead ends: 31 [2019-11-28 20:09:53,359 INFO L226 Difference]: Without dead ends: 31 [2019-11-28 20:09:53,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:09:53,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-28 20:09:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-28 20:09:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 20:09:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-28 20:09:53,365 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 15 [2019-11-28 20:09:53,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:53,366 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-28 20:09:53,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:09:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-28 20:09:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:09:53,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:53,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:53,368 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:53,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1161225543, now seen corresponding path program 1 times [2019-11-28 20:09:53,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:53,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94923815] [2019-11-28 20:09:53,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:53,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94923815] [2019-11-28 20:09:53,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:53,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:53,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710590177] [2019-11-28 20:09:53,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:09:53,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:53,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:09:53,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:53,487 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2019-11-28 20:09:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:53,585 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-28 20:09:53,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:53,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-28 20:09:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:53,587 INFO L225 Difference]: With dead ends: 30 [2019-11-28 20:09:53,587 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 20:09:53,588 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:09:53,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 20:09:53,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 20:09:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 20:09:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-28 20:09:53,593 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 16 [2019-11-28 20:09:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:53,594 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-28 20:09:53,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:09:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-28 20:09:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:09:53,595 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:53,595 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:53,596 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:53,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1638253387, now seen corresponding path program 1 times [2019-11-28 20:09:53,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:53,597 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667678201] [2019-11-28 20:09:53,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:53,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667678201] [2019-11-28 20:09:53,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:53,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:09:53,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297824018] [2019-11-28 20:09:53,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:09:53,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:53,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:09:53,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:09:53,669 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2019-11-28 20:09:53,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:53,764 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-28 20:09:53,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:09:53,765 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-28 20:09:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:53,766 INFO L225 Difference]: With dead ends: 29 [2019-11-28 20:09:53,766 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 20:09:53,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:09:53,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 20:09:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 20:09:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 20:09:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-28 20:09:53,771 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2019-11-28 20:09:53,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:53,772 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-28 20:09:53,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:09:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-28 20:09:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 20:09:53,773 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:53,773 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:53,773 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:53,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:53,774 INFO L82 PathProgramCache]: Analyzing trace with hash 753752635, now seen corresponding path program 1 times [2019-11-28 20:09:53,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:53,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874807319] [2019-11-28 20:09:53,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:53,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874807319] [2019-11-28 20:09:53,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:53,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:09:53,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871957666] [2019-11-28 20:09:53,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:09:53,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:53,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:09:53,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:09:53,850 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2019-11-28 20:09:53,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:53,980 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-11-28 20:09:53,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:09:53,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-28 20:09:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:53,981 INFO L225 Difference]: With dead ends: 28 [2019-11-28 20:09:53,981 INFO L226 Difference]: Without dead ends: 28 [2019-11-28 20:09:53,982 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:09:53,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-28 20:09:53,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-28 20:09:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-28 20:09:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-28 20:09:53,986 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 18 [2019-11-28 20:09:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:53,987 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-28 20:09:53,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:09:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-28 20:09:53,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:09:53,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:53,989 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:53,989 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:53,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1891495287, now seen corresponding path program 1 times [2019-11-28 20:09:53,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:53,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008491298] [2019-11-28 20:09:53,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:09:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:09:54,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008491298] [2019-11-28 20:09:54,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:09:54,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:09:54,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165472823] [2019-11-28 20:09:54,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:09:54,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:09:54,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:09:54,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:09:54,113 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 7 states. [2019-11-28 20:09:54,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:09:54,256 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-28 20:09:54,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:09:54,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-28 20:09:54,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:09:54,257 INFO L225 Difference]: With dead ends: 27 [2019-11-28 20:09:54,257 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 20:09:54,258 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-11-28 20:09:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 20:09:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-28 20:09:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 20:09:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-28 20:09:54,265 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2019-11-28 20:09:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:09:54,266 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-28 20:09:54,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:09:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-28 20:09:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 20:09:54,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:09:54,268 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:09:54,268 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 20:09:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:09:54,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1493188163, now seen corresponding path program 1 times [2019-11-28 20:09:54,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:09:54,270 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429880753] [2019-11-28 20:09:54,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:09:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:09:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:09:54,352 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:09:54,353 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:09:54,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:09:54 BoogieIcfgContainer [2019-11-28 20:09:54,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:09:54,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:09:54,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:09:54,392 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:09:54,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:09:52" (3/4) ... [2019-11-28 20:09:54,396 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:09:54,451 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:09:54,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:09:54,455 INFO L168 Benchmark]: Toolchain (without parser) took 3719.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 961.7 MB in the beginning and 858.5 MB in the end (delta: 103.2 MB). Peak memory consumption was 235.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:54,455 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:09:54,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:54,457 INFO L168 Benchmark]: Boogie Preprocessor took 61.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:54,458 INFO L168 Benchmark]: RCFGBuilder took 692.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:54,459 INFO L168 Benchmark]: TraceAbstraction took 2300.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 865.2 MB in the end (delta: 195.8 MB). Peak memory consumption was 195.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:54,459 INFO L168 Benchmark]: Witness Printer took 63.79 ms. Allocated memory is still 1.2 GB. Free memory was 865.2 MB in the beginning and 858.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:09:54,463 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 596.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 692.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2300.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 865.2 MB in the end (delta: 195.8 MB). Peak memory consumption was 195.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.79 ms. Allocated memory is still 1.2 GB. Free memory was 865.2 MB in the beginning and 858.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 534]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L515-L522] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L523] data.p0 = malloc(37U) VAL [data={2:0}, malloc(37U)={-1:0}] [L524] EXPR data.p0 VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}] [L524] void *ptr = data.p0; [L525] COND FALSE !(__VERIFIER_nondet_int()) [L528] data.str.p2 = 30 VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L530] EXPR data.str.p2 VAL [data={2:0}, data.str.p2=30, malloc(37U)={-1:0}, ptr={-1:0}] [L530] COND FALSE !(25 > data.str.p2) [L533] EXPR data.p0 VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L533] free(data.p0) VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L533] free(data.p0) VAL [data={2:0}, data.p0={-1:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L533] free(data.p0) [L534] free(ptr) VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L534] free(ptr) VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] [L534] free(ptr) VAL [data={2:0}, malloc(37U)={-1:0}, ptr={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 62 locations, 21 error locations. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 158 SDtfs, 214 SDslu, 216 SDs, 0 SdLazy, 440 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 8 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 7024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...