./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8d31f386 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/array-memsafety/mult_array_unsafe.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 4ceec10d001c6e3ab8acae30cb42f114023e2890 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 08:47:53,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 08:47:53,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 08:47:53,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 08:47:53,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 08:47:53,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 08:47:53,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 08:47:53,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 08:47:53,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 08:47:53,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 08:47:53,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 08:47:53,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 08:47:53,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 08:47:53,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 08:47:53,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 08:47:53,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 08:47:53,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 08:47:53,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 08:47:53,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 08:47:53,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 08:47:53,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 08:47:53,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 08:47:53,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 08:47:53,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 08:47:53,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 08:47:53,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 08:47:53,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 08:47:53,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 08:47:53,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 08:47:53,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 08:47:53,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 08:47:53,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 08:47:53,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 08:47:53,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 08:47:53,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 08:47:53,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 08:47:53,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 08:47:53,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 08:47:53,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 08:47:53,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 08:47:53,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 08:47:53,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-07-06 08:47:53,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 08:47:53,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 08:47:53,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 08:47:53,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 08:47:53,603 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 08:47:53,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 08:47:53,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 08:47:53,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 08:47:53,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 08:47:53,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 08:47:53,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 08:47:53,605 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-07-06 08:47:53,605 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-07-06 08:47:53,605 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-07-06 08:47:53,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 08:47:53,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-07-06 08:47:53,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 08:47:53,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 08:47:53,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 08:47:53,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 08:47:53,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 08:47:53,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 08:47:53,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 08:47:53,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 08:47:53,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 08:47:53,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 08:47:53,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 08:47:53,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ceec10d001c6e3ab8acae30cb42f114023e2890 [2021-07-06 08:47:53,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 08:47:53,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 08:47:53,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 08:47:53,871 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 08:47:53,872 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 08:47:53,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-07-06 08:47:53,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943e39ef2/ac181dcc628d4a099ba862e1ff88c064/FLAG0d0bf11ad [2021-07-06 08:47:54,329 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 08:47:54,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2021-07-06 08:47:54,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943e39ef2/ac181dcc628d4a099ba862e1ff88c064/FLAG0d0bf11ad [2021-07-06 08:47:54,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943e39ef2/ac181dcc628d4a099ba862e1ff88c064 [2021-07-06 08:47:54,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 08:47:54,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-06 08:47:54,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 08:47:54,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 08:47:54,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 08:47:54,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1942c884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54, skipping insertion in model container [2021-07-06 08:47:54,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 08:47:54,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 08:47:54,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 08:47:54,654 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 08:47:54,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 08:47:54,719 INFO L208 MainTranslator]: Completed translation [2021-07-06 08:47:54,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54 WrapperNode [2021-07-06 08:47:54,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 08:47:54,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 08:47:54,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 08:47:54,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 08:47:54,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 08:47:54,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 08:47:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 08:47:54,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 08:47:54,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (1/1) ... [2021-07-06 08:47:54,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 08:47:54,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 08:47:54,802 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) [2021-07-06 08:47:54,820 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 [2021-07-06 08:47:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-07-06 08:47:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 08:47:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-07-06 08:47:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-07-06 08:47:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-07-06 08:47:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-07-06 08:47:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-07-06 08:47:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-07-06 08:47:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-07-06 08:47:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-07-06 08:47:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-07-06 08:47:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-07-06 08:47:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-07-06 08:47:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-07-06 08:47:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-07-06 08:47:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-07-06 08:47:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-07-06 08:47:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-07-06 08:47:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-07-06 08:47:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-07-06 08:47:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-07-06 08:47:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-07-06 08:47:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-07-06 08:47:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-07-06 08:47:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-07-06 08:47:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-07-06 08:47:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-07-06 08:47:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-07-06 08:47:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-07-06 08:47:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-07-06 08:47:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-07-06 08:47:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-07-06 08:47:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-07-06 08:47:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 08:47:55,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 08:47:55,172 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-06 08:47:55,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:47:55 BoogieIcfgContainer [2021-07-06 08:47:55,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 08:47:55,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 08:47:55,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 08:47:55,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 08:47:55,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 08:47:54" (1/3) ... [2021-07-06 08:47:55,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c0d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 08:47:55, skipping insertion in model container [2021-07-06 08:47:55,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:47:54" (2/3) ... [2021-07-06 08:47:55,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c0d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 08:47:55, skipping insertion in model container [2021-07-06 08:47:55,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:47:55" (3/3) ... [2021-07-06 08:47:55,177 INFO L111 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe.i [2021-07-06 08:47:55,181 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 08:47:55,182 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-07-06 08:47:55,205 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == mainErr0REQUIRES_VIOLATION ======== [2021-07-06 08:47:55,208 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 08:47:55,208 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 08:47:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-07-06 08:47:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-06 08:47:55,220 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 08:47:55,221 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 08:47:55,221 INFO L374 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION] === [2021-07-06 08:47:55,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 08:47:55,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1063444840, now seen corresponding path program 1 times [2021-07-06 08:47:55,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 08:47:55,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291565206] [2021-07-06 08:47:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:55,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 08:47:55,309 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-06 08:47:55,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261449640] [2021-07-06 08:47:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:55,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 08:47:55,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 08:47:55,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-06 08:47:55,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-06 08:47:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 08:47:55,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-06 08:47:55,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 08:47:55,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 08:47:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:55,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-06 08:47:55,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 08:47:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-06 08:47:55,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-06 08:47:55,544 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-07-06 08:47:55,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-07-06 08:47:55,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 08:47:55,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 08:47:55,548 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-06 08:47:55,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:55,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-06 08:47:55,561 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-06 08:47:55,561 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2021-07-06 08:47:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-06 08:47:55,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 08:47:55,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-06 08:47:55,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 08:47:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 08:47:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 08:47:55,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 08:47:55,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291565206] [2021-07-06 08:47:55,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-07-06 08:47:55,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261449640] [2021-07-06 08:47:55,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261449640] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 08:47:55,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 08:47:55,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 08:47:55,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383586982] [2021-07-06 08:47:55,599 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 08:47:55,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 08:47:55,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 08:47:55,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 08:47:55,612 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 08:47:55,640 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-07-06 08:47:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 08:47:55,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 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 13 [2021-07-06 08:47:55,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 08:47:55,644 INFO L225 Difference]: With dead ends: 31 [2021-07-06 08:47:55,644 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 08:47:55,645 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 08:47:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 08:47:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 08:47:55,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 08:47:55,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 08:47:55,657 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-07-06 08:47:55,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 08:47:55,657 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 08:47:55,657 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-07-06 08:47:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 08:47:55,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 08:47:55,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-07-06 08:47:55,868 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-06 08:47:55,869 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 08:47:55,871 INFO L303 ceAbstractionStarter]: Result for error location mainErr0REQUIRES_VIOLATION was SAFE (1/7) [2021-07-06 08:47:55,872 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == mainErr1REQUIRES_VIOLATION ======== [2021-07-06 08:47:55,877 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 08:47:55,879 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 08:47:55,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 28 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-07-06 08:47:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-06 08:47:55,881 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 08:47:55,881 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 08:47:55,881 INFO L374 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION] === [2021-07-06 08:47:55,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 08:47:55,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1063444839, now seen corresponding path program 1 times [2021-07-06 08:47:55,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 08:47:55,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113952100] [2021-07-06 08:47:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:55,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 08:47:55,890 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-06 08:47:55,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132271312] [2021-07-06 08:47:55,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 08:47:55,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 08:47:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 08:47:55,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-06 08:47:55,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-07-06 08:47:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 08:47:55,999 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 08:47:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 08:47:56,017 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 08:47:56,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 08:47:56,053 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 08:47:56,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-07-06 08:47:56,253 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-07-06 08:47:56,254 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 08:47:56,254 INFO L303 ceAbstractionStarter]: Result for error location mainErr1REQUIRES_VIOLATION was UNSAFE (2/7) [2021-07-06 08:47:56,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 08:47:56 BoogieIcfgContainer [2021-07-06 08:47:56,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 08:47:56,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 08:47:56,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 08:47:56,266 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 08:47:56,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:47:55" (3/4) ... [2021-07-06 08:47:56,267 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 08:47:56,286 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 08:47:56,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 08:47:56,287 INFO L168 Benchmark]: Toolchain (without parser) took 1933.95 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 36.1 MB in the beginning and 61.2 MB in the end (delta: -25.1 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:56,287 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 39.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 08:47:56,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.18 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.9 MB in the beginning and 43.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:56,288 INFO L168 Benchmark]: Boogie Preprocessor took 59.65 ms. Allocated memory is still 71.3 MB. Free memory was 43.7 MB in the beginning and 41.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:56,288 INFO L168 Benchmark]: RCFGBuilder took 392.09 ms. Allocated memory is still 71.3 MB. Free memory was 41.4 MB in the beginning and 38.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:56,288 INFO L168 Benchmark]: TraceAbstraction took 1091.68 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 37.6 MB in the beginning and 63.3 MB in the end (delta: -25.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:56,288 INFO L168 Benchmark]: Witness Printer took 20.60 ms. Allocated memory is still 86.0 MB. Free memory was 63.3 MB in the beginning and 61.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 08:47:56,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 39.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.18 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.9 MB in the beginning and 43.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.65 ms. Allocated memory is still 71.3 MB. Free memory was 43.7 MB in the beginning and 41.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 392.09 ms. Allocated memory is still 71.3 MB. Free memory was 41.4 MB in the beginning and 38.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1091.68 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 37.6 MB in the beginning and 63.3 MB in the end (delta: -25.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * Witness Printer took 20.60 ms. Allocated memory is still 86.0 MB. Free memory was 63.3 MB in the beginning and 61.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - CounterExampleResult [Line: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L515] length = 1 VAL [length=1] [L516] int fac = __VERIFIER_nondet_int(); [L517] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L517] fac = 1 VAL [fac=1, length=1] [L518] int *arr = __builtin_alloca (length); [L519] int *arr2 = __builtin_alloca (fac*length); VAL [__builtin_alloca (fac*length)={3:0}, __builtin_alloca (length)={2:0}, arr={2:0}, arr2={3:0}, fac=1, length=1] [L520] COND FALSE !(!arr || !arr2) [L521] i=0 VAL [__builtin_alloca (fac*length)={3:0}, __builtin_alloca (length)={2:0}, arr={2:0}, arr2={3:0}, fac=1, i=0, length=1] [L521] COND TRUE i