./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer --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 1ea2dc862d4e5ac3143824817093a58b58ef1480 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 08:57:52,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:52,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:52,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:52,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:52,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:52,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:52,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:52,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:52,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:52,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:52,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:52,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:52,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:52,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:52,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:52,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:52,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:52,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:52,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:52,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:52,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:52,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:52,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:52,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:52,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:52,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:52,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:52,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:52,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:52,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:52,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:52,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:52,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:52,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:52,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:52,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:52,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:52,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:52,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:52,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:52,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:57:52,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:52,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:52,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:52,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:52,569 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:52,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:52,569 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:52,569 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:52,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:52,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:52,571 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:52,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:52,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:52,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:52,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:52,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:52,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:52,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:52,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:52,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:52,572 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer 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 -> 1ea2dc862d4e5ac3143824817093a58b58ef1480 [2019-10-22 08:57:52,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:52,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:52,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:52,607 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:52,608 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:52,608 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2019-10-22 08:57:52,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/data/c90804def/98de13d13fb14aeba3ac7cfafec4199f/FLAG8a1f01cda [2019-10-22 08:57:53,049 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:53,049 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2019-10-22 08:57:53,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/data/c90804def/98de13d13fb14aeba3ac7cfafec4199f/FLAG8a1f01cda [2019-10-22 08:57:53,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/data/c90804def/98de13d13fb14aeba3ac7cfafec4199f [2019-10-22 08:57:53,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:53,073 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:57:53,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:53,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:53,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:53,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630b61e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53, skipping insertion in model container [2019-10-22 08:57:53,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,087 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:53,115 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:53,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:53,440 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:53,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:53,511 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:53,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53 WrapperNode [2019-10-22 08:57:53,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:53,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:53,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:53,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:53,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:53,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:53,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:53,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:53,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/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 [2019-10-22 08:57:53,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:57:53,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:53,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:57:53,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:57:53,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:57:53,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:57:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:57:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-22 08:57:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:57:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:57:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:57:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:57:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:57:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:57:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:57:53,621 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:57:53,622 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:57:53,623 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:57:53,624 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:57:53,625 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:57:53,626 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:57:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:57:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:57:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:57:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:57:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:54,081 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:54,081 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-22 08:57:54,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:54 BoogieIcfgContainer [2019-10-22 08:57:54,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:54,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:54,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:54,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:54,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:53" (1/3) ... [2019-10-22 08:57:54,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c24bdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:54, skipping insertion in model container [2019-10-22 08:57:54,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53" (2/3) ... [2019-10-22 08:57:54,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c24bdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:54, skipping insertion in model container [2019-10-22 08:57:54,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:54" (3/3) ... [2019-10-22 08:57:54,088 INFO L109 eAbstractionObserver]: Analyzing ICFG 960521-1_1-3.i [2019-10-22 08:57:54,096 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:54,103 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2019-10-22 08:57:54,113 INFO L249 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2019-10-22 08:57:54,128 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:54,128 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:57:54,128 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:54,128 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:54,129 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:54,129 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:54,129 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:54,129 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:54,150 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-10-22 08:57:54,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:57:54,158 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:54,159 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:54,160 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:54,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:54,167 INFO L82 PathProgramCache]: Analyzing trace with hash 583874427, now seen corresponding path program 1 times [2019-10-22 08:57:54,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:54,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090587820] [2019-10-22 08:57:54,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:54,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090587820] [2019-10-22 08:57:54,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:54,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:54,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449982630] [2019-10-22 08:57:54,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:54,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:54,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:54,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:54,347 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2019-10-22 08:57:54,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:54,458 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2019-10-22 08:57:54,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:54,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 08:57:54,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:54,467 INFO L225 Difference]: With dead ends: 62 [2019-10-22 08:57:54,467 INFO L226 Difference]: Without dead ends: 59 [2019-10-22 08:57:54,468 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-22 08:57:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-10-22 08:57:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-10-22 08:57:54,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2019-10-22 08:57:54,499 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 9 [2019-10-22 08:57:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:54,499 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2019-10-22 08:57:54,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2019-10-22 08:57:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:54,500 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:54,500 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:54,500 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:54,501 INFO L82 PathProgramCache]: Analyzing trace with hash 920023712, now seen corresponding path program 1 times [2019-10-22 08:57:54,501 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:54,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712923991] [2019-10-22 08:57:54,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:54,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712923991] [2019-10-22 08:57:54,612 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:54,612 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:54,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976940261] [2019-10-22 08:57:54,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:54,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:54,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:54,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:54,615 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 4 states. [2019-10-22 08:57:54,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:54,776 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2019-10-22 08:57:54,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:57:54,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:57:54,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:54,778 INFO L225 Difference]: With dead ends: 58 [2019-10-22 08:57:54,779 INFO L226 Difference]: Without dead ends: 58 [2019-10-22 08:57:54,779 INFO L600 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 [2019-10-22 08:57:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-10-22 08:57:54,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-10-22 08:57:54,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 08:57:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2019-10-22 08:57:54,787 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 10 [2019-10-22 08:57:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:54,787 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2019-10-22 08:57:54,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2019-10-22 08:57:54,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:54,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:54,787 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:54,788 INFO L410 AbstractCegarLoop]: === Iteration 3 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:54,788 INFO L82 PathProgramCache]: Analyzing trace with hash 920023713, now seen corresponding path program 1 times [2019-10-22 08:57:54,788 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:54,788 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486611414] [2019-10-22 08:57:54,789 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,789 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:54,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486611414] [2019-10-22 08:57:54,951 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:54,951 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:54,951 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106837507] [2019-10-22 08:57:54,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:54,952 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:54,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:54,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:54,952 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 5 states. [2019-10-22 08:57:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:55,131 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2019-10-22 08:57:55,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:55,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 08:57:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:55,132 INFO L225 Difference]: With dead ends: 57 [2019-10-22 08:57:55,132 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 08:57:55,133 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 08:57:55,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 08:57:55,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 08:57:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2019-10-22 08:57:55,138 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 10 [2019-10-22 08:57:55,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:55,138 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2019-10-22 08:57:55,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2019-10-22 08:57:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:57:55,138 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:55,139 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:55,139 INFO L410 AbstractCegarLoop]: === Iteration 4 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:55,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:55,139 INFO L82 PathProgramCache]: Analyzing trace with hash 944956531, now seen corresponding path program 1 times [2019-10-22 08:57:55,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:55,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805866399] [2019-10-22 08:57:55,140 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,140 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:55,228 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805866399] [2019-10-22 08:57:55,228 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:55,228 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:55,228 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210441080] [2019-10-22 08:57:55,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:55,229 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:55,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:55,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:55,229 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 4 states. [2019-10-22 08:57:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:55,355 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2019-10-22 08:57:55,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:55,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-22 08:57:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:55,356 INFO L225 Difference]: With dead ends: 54 [2019-10-22 08:57:55,356 INFO L226 Difference]: Without dead ends: 54 [2019-10-22 08:57:55,357 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:55,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-22 08:57:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-10-22 08:57:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 08:57:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-10-22 08:57:55,361 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 15 [2019-10-22 08:57:55,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:55,361 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-10-22 08:57:55,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-10-22 08:57:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:57:55,362 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:55,362 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:55,364 INFO L410 AbstractCegarLoop]: === Iteration 5 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:55,365 INFO L82 PathProgramCache]: Analyzing trace with hash 944956532, now seen corresponding path program 1 times [2019-10-22 08:57:55,365 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:55,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466039715] [2019-10-22 08:57:55,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:55,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466039715] [2019-10-22 08:57:55,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:55,483 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:57:55,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054213739] [2019-10-22 08:57:55,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:57:55,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:55,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:57:55,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:55,484 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 7 states. [2019-10-22 08:57:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:55,724 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2019-10-22 08:57:55,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:55,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-22 08:57:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:55,728 INFO L225 Difference]: With dead ends: 62 [2019-10-22 08:57:55,728 INFO L226 Difference]: Without dead ends: 62 [2019-10-22 08:57:55,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-10-22 08:57:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2019-10-22 08:57:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-22 08:57:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2019-10-22 08:57:55,735 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 15 [2019-10-22 08:57:55,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:55,736 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2019-10-22 08:57:55,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:57:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2019-10-22 08:57:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:57:55,736 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:55,737 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:55,737 INFO L410 AbstractCegarLoop]: === Iteration 6 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:55,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1984403550, now seen corresponding path program 1 times [2019-10-22 08:57:55,738 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:55,738 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630191719] [2019-10-22 08:57:55,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:55,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630191719] [2019-10-22 08:57:55,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695776510] [2019-10-22 08:57:55,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:57:55,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:56,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:56,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:57:56,009 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-10-22 08:57:56,009 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846133968] [2019-10-22 08:57:56,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:56,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:56,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:56,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:56,010 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 5 states. [2019-10-22 08:57:56,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:56,057 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2019-10-22 08:57:56,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:56,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-10-22 08:57:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:56,060 INFO L225 Difference]: With dead ends: 96 [2019-10-22 08:57:56,060 INFO L226 Difference]: Without dead ends: 96 [2019-10-22 08:57:56,061 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-22 08:57:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2019-10-22 08:57:56,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 08:57:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2019-10-22 08:57:56,068 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 18 [2019-10-22 08:57:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:56,068 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2019-10-22 08:57:56,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2019-10-22 08:57:56,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 08:57:56,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:56,069 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:56,269 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:56,270 INFO L410 AbstractCegarLoop]: === Iteration 7 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:56,270 INFO L82 PathProgramCache]: Analyzing trace with hash 813250499, now seen corresponding path program 1 times [2019-10-22 08:57:56,270 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:56,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164694016] [2019-10-22 08:57:56,271 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:56,271 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:56,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:57:56,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164694016] [2019-10-22 08:57:56,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580121085] [2019-10-22 08:57:56,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-22 08:57:56,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:56,521 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_14|], 1=[|v_#valid_32|]} [2019-10-22 08:57:56,529 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:57:56,538 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2019-10-22 08:57:56,538 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:57:56,549 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:56,556 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 08:57:56,556 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:57:56,565 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:56,572 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:57:56,573 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:33 [2019-10-22 08:57:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:56,684 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:57:56,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-10-22 08:57:56,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70154380] [2019-10-22 08:57:56,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:57:56,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:56,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:57:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:57:56,686 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 12 states. [2019-10-22 08:57:57,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:57,475 INFO L93 Difference]: Finished difference Result 111 states and 116 transitions. [2019-10-22 08:57:57,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:57:57,476 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 20 [2019-10-22 08:57:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:57,477 INFO L225 Difference]: With dead ends: 111 [2019-10-22 08:57:57,477 INFO L226 Difference]: Without dead ends: 111 [2019-10-22 08:57:57,477 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2019-10-22 08:57:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-10-22 08:57:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 71. [2019-10-22 08:57:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 08:57:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2019-10-22 08:57:57,483 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 20 [2019-10-22 08:57:57,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:57,483 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2019-10-22 08:57:57,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:57:57,483 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2019-10-22 08:57:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:57:57,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:57,484 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:57,684 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:57,685 INFO L410 AbstractCegarLoop]: === Iteration 8 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:57,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:57,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1526472291, now seen corresponding path program 1 times [2019-10-22 08:57:57,686 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:57,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090859266] [2019-10-22 08:57:57,686 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:57,686 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:57,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:57:57,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090859266] [2019-10-22 08:57:57,741 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:57,741 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:57,741 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520767977] [2019-10-22 08:57:57,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:57,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:57,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:57,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:57,742 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 5 states. [2019-10-22 08:57:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:57,904 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2019-10-22 08:57:57,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:57,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-22 08:57:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:57,905 INFO L225 Difference]: With dead ends: 69 [2019-10-22 08:57:57,905 INFO L226 Difference]: Without dead ends: 69 [2019-10-22 08:57:57,906 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:57,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-22 08:57:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-10-22 08:57:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 08:57:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2019-10-22 08:57:57,910 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 22 [2019-10-22 08:57:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:57,910 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2019-10-22 08:57:57,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:57,910 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2019-10-22 08:57:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:57:57,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:57,911 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:57,911 INFO L410 AbstractCegarLoop]: === Iteration 9 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:57,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:57,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1526472292, now seen corresponding path program 1 times [2019-10-22 08:57:57,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:57,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059634892] [2019-10-22 08:57:57,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:57,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:57,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:57:58,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059634892] [2019-10-22 08:57:58,028 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:58,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:57:58,028 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370902251] [2019-10-22 08:57:58,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:58,029 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:58,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:58,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:58,029 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 8 states. [2019-10-22 08:57:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:58,179 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2019-10-22 08:57:58,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:57:58,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-10-22 08:57:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:58,180 INFO L225 Difference]: With dead ends: 57 [2019-10-22 08:57:58,180 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 08:57:58,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:57:58,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 08:57:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-10-22 08:57:58,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-22 08:57:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2019-10-22 08:57:58,184 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 22 [2019-10-22 08:57:58,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:58,184 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2019-10-22 08:57:58,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:58,184 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2019-10-22 08:57:58,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:57:58,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:58,185 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:58,185 INFO L410 AbstractCegarLoop]: === Iteration 10 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:58,186 INFO L82 PathProgramCache]: Analyzing trace with hash 22294176, now seen corresponding path program 1 times [2019-10-22 08:57:58,186 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:58,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084628165] [2019-10-22 08:57:58,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:58,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:58,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:57:58,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084628165] [2019-10-22 08:57:58,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:58,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:58,240 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579609028] [2019-10-22 08:57:58,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:58,240 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:58,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:58,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:58,241 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 5 states. [2019-10-22 08:57:58,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:58,355 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2019-10-22 08:57:58,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:58,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 08:57:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:58,356 INFO L225 Difference]: With dead ends: 55 [2019-10-22 08:57:58,356 INFO L226 Difference]: Without dead ends: 55 [2019-10-22 08:57:58,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-22 08:57:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-10-22 08:57:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-22 08:57:58,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2019-10-22 08:57:58,361 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 25 [2019-10-22 08:57:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:58,361 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2019-10-22 08:57:58,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2019-10-22 08:57:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:57:58,362 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:58,362 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:58,362 INFO L410 AbstractCegarLoop]: === Iteration 11 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1533450202, now seen corresponding path program 1 times [2019-10-22 08:57:58,363 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:58,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284967977] [2019-10-22 08:57:58,363 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:58,363 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:58,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:57:58,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284967977] [2019-10-22 08:57:58,453 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:58,453 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:57:58,453 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915072561] [2019-10-22 08:57:58,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:57:58,454 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:58,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:57:58,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:58,455 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 7 states. [2019-10-22 08:57:58,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:58,621 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2019-10-22 08:57:58,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:58,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2019-10-22 08:57:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:58,623 INFO L225 Difference]: With dead ends: 57 [2019-10-22 08:57:58,623 INFO L226 Difference]: Without dead ends: 57 [2019-10-22 08:57:58,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:57:58,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-22 08:57:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2019-10-22 08:57:58,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-10-22 08:57:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2019-10-22 08:57:58,626 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 25 [2019-10-22 08:57:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:58,626 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2019-10-22 08:57:58,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:57:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2019-10-22 08:57:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:57:58,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:58,627 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:58,627 INFO L410 AbstractCegarLoop]: === Iteration 12 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:57:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:58,628 INFO L82 PathProgramCache]: Analyzing trace with hash -50131134, now seen corresponding path program 1 times [2019-10-22 08:57:58,628 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:58,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501880629] [2019-10-22 08:57:58,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:58,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:58,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:58,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501880629] [2019-10-22 08:57:58,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196251528] [2019-10-22 08:57:58,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:58,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-22 08:57:58,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:58,932 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 08:57:58,933 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:57:58,938 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:58,938 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:57:58,939 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2019-10-22 08:57:58,958 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:57:58,959 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:57:58,963 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:58,963 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:57:58,963 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2019-10-22 08:57:58,982 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2019-10-22 08:57:58,982 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:57:58,986 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:58,986 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:57:58,986 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:8 [2019-10-22 08:58:02,879 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-10-22 08:58:02,891 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2019-10-22 08:58:02,892 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:02,898 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:02,898 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:02,899 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:29, output treesize:25 [2019-10-22 08:58:02,920 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 12 [2019-10-22 08:58:02,921 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:02,932 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:02,932 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:02,932 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:36, output treesize:3 [2019-10-22 08:58:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:02,945 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:02,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2019-10-22 08:58:02,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529359394] [2019-10-22 08:58:02,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-22 08:58:02,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:02,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-22 08:58:02,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=172, Unknown=5, NotChecked=0, Total=210 [2019-10-22 08:58:02,946 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 15 states. [2019-10-22 08:58:08,477 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-10-22 08:58:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:20,188 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2019-10-22 08:58:20,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:58:20,189 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2019-10-22 08:58:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:20,189 INFO L225 Difference]: With dead ends: 64 [2019-10-22 08:58:20,189 INFO L226 Difference]: Without dead ends: 64 [2019-10-22 08:58:20,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=122, Invalid=521, Unknown=7, NotChecked=0, Total=650 [2019-10-22 08:58:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-10-22 08:58:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2019-10-22 08:58:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 08:58:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2019-10-22 08:58:20,192 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 27 [2019-10-22 08:58:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:20,193 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2019-10-22 08:58:20,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-22 08:58:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2019-10-22 08:58:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:58:20,193 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:20,194 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:20,394 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:20,395 INFO L410 AbstractCegarLoop]: === Iteration 13 === [fooErr1REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr15ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr16ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 08:58:20,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,395 INFO L82 PathProgramCache]: Analyzing trace with hash -36770864, now seen corresponding path program 1 times [2019-10-22 08:58:20,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,395 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487472716] [2019-10-22 08:58:20,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:20,462 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:20,463 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:20,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:20 BoogieIcfgContainer [2019-10-22 08:58:20,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:20,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:20,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:20,537 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:20,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:54" (3/4) ... [2019-10-22 08:58:20,541 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:58:20,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5d3bfdef-4827-486c-b27d-f65eb4224a30/bin/uautomizer/witness.graphml [2019-10-22 08:58:20,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:20,613 INFO L168 Benchmark]: Toolchain (without parser) took 27540.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,613 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:20,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,614 INFO L168 Benchmark]: Boogie Preprocessor took 53.58 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,614 INFO L168 Benchmark]: RCFGBuilder took 516.22 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,615 INFO L168 Benchmark]: TraceAbstraction took 26453.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -60.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:20,615 INFO L168 Benchmark]: Witness Printer took 75.04 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,617 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.58 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 516.22 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: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26453.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -60.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 75.04 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 536]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int *a, *b; [L513] int n; VAL [\old(a)=7, \old(a)=9, \old(b)=5, \old(b)=10, \old(n)=8, a={0:0}, b={0:0}, n=0] [L525] n = 1 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={0:0}, b={0:0}, n=1] [L526] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L529] a = malloc(n * sizeof(*a)) [L530] b = malloc(n * sizeof(*b)) [L531] EXPR b++ VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, b++={-1:0}, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L531] *b++ = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, b++={-1:0}, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L532] CALL foo() VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, n=1] [L517] int i; [L518] i = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=0, n=1] [L518] COND TRUE i < n VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=0, n=1] [L519] a[i] = -1 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=0, n=1] [L518] i++ VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=1, n=1] [L518] COND FALSE !(i < n) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=1, n=1] [L520] i = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=0, n=1] [L520] COND FALSE !(i < n - 1) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, i=0, n=1] [L532] RET foo() VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L533] b[-1] VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, b[-1]=0, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L533] COND FALSE !(b[-1]) [L536] free(a) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L536] free(a) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] [L536] free(a) [L536] free(b) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={3:0}, b={-1:4}, malloc(n * sizeof(*a))={3:0}, malloc(n * sizeof(*b))={-1:0}, n=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 77 locations, 21 error locations. Result: UNSAFE, OverallTime: 26.3s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 438 SDtfs, 865 SDslu, 613 SDs, 0 SdLazy, 1391 SolverSat, 157 SolverUnsat, 20 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=7, 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, 12 MinimizatonAttempts, 82 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 268 ConstructedInterpolants, 16 QuantifiedInterpolants, 38125 SizeOfPredicates, 17 NumberOfNonLiveVariables, 410 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 18/24 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...