./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.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_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/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 134c0db99ce5251339642354d8ec6411765b7878 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:03,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:03,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:03,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:03,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:03,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:03,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:03,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:03,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:03,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:03,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:03,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:03,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:03,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:03,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:03,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:03,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:03,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:03,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:03,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:03,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:03,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:03,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:03,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:03,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:03,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:03,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:03,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:03,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:03,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:03,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:03,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:03,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:03,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:03,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:03,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:03,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:03,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:03,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:03,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:03,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:03,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:59:03,227 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:03,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:03,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:03,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:03,229 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:03,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:03,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:03,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:03,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:03,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:03,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:03,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:59:03,231 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:59:03,231 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:59:03,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:03,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:03,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:03,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:03,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:03,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:03,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:03,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:03,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:03,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:03,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:03,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:03,234 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_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/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 -> 134c0db99ce5251339642354d8ec6411765b7878 [2019-10-22 08:59:03,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:03,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:03,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:03,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:03,287 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:03,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-10-22 08:59:03,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/data/0c4a34408/2c0db7350fae42a4835c6245c386f22a/FLAG0efb76ab2 [2019-10-22 08:59:03,855 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:03,859 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2019-10-22 08:59:03,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/data/0c4a34408/2c0db7350fae42a4835c6245c386f22a/FLAG0efb76ab2 [2019-10-22 08:59:04,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/data/0c4a34408/2c0db7350fae42a4835c6245c386f22a [2019-10-22 08:59:04,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:04,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:59:04,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:04,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:04,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:04,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc74767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04, skipping insertion in model container [2019-10-22 08:59:04,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,150 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:04,185 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:04,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:04,566 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:04,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:04,668 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:04,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04 WrapperNode [2019-10-22 08:59:04,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:04,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:04,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:04,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:04,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... [2019-10-22 08:59:04,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:04,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:04,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:04,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:04,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/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 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure knapsack [2019-10-22 08:59:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:59:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:59:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:59:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:59:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:59:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:59:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:59:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:59:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:59:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:59:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:59:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:59:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:59:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:59:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:59:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:59:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:59:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:59:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:59:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:59:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:59:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure knapsack [2019-10-22 08:59:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:59:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:59:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:05,327 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:05,327 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:59:05,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:05 BoogieIcfgContainer [2019-10-22 08:59:05,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:05,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:05,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:05,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:05,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:04" (1/3) ... [2019-10-22 08:59:05,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b12fe2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:05, skipping insertion in model container [2019-10-22 08:59:05,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:04" (2/3) ... [2019-10-22 08:59:05,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b12fe2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:05, skipping insertion in model container [2019-10-22 08:59:05,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:05" (3/3) ... [2019-10-22 08:59:05,349 INFO L109 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2019-10-22 08:59:05,361 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:05,370 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2019-10-22 08:59:05,385 INFO L249 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2019-10-22 08:59:05,412 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:05,412 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:59:05,412 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:05,412 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:05,412 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:05,413 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:05,413 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:05,414 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2019-10-22 08:59:05,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:59:05,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:05,453 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:05,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:05,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1852035194, now seen corresponding path program 1 times [2019-10-22 08:59:05,477 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674697759] [2019-10-22 08:59:05,479 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,479 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:05,793 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 08:59:05,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674697759] [2019-10-22 08:59:05,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:05,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:05,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933831513] [2019-10-22 08:59:05,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:05,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:05,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:05,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:05,818 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 6 states. [2019-10-22 08:59:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:06,246 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2019-10-22 08:59:06,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:06,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 08:59:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:06,260 INFO L225 Difference]: With dead ends: 82 [2019-10-22 08:59:06,262 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 08:59:06,264 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:06,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 08:59:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2019-10-22 08:59:06,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 08:59:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2019-10-22 08:59:06,317 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 11 [2019-10-22 08:59:06,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:06,317 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2019-10-22 08:59:06,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2019-10-22 08:59:06,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:59:06,318 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:06,318 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:06,318 INFO L410 AbstractCegarLoop]: === Iteration 2 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:06,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:06,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1852035193, now seen corresponding path program 1 times [2019-10-22 08:59:06,319 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:06,320 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099412388] [2019-10-22 08:59:06,320 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,320 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,393 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 08:59:06,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099412388] [2019-10-22 08:59:06,394 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:06,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:06,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236077940] [2019-10-22 08:59:06,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:06,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:06,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:06,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:06,397 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 4 states. [2019-10-22 08:59:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:06,591 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2019-10-22 08:59:06,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:06,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 08:59:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:06,593 INFO L225 Difference]: With dead ends: 71 [2019-10-22 08:59:06,593 INFO L226 Difference]: Without dead ends: 71 [2019-10-22 08:59:06,594 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 08:59:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-10-22 08:59:06,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-10-22 08:59:06,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 08:59:06,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2019-10-22 08:59:06,613 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 11 [2019-10-22 08:59:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:06,613 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2019-10-22 08:59:06,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2019-10-22 08:59:06,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:59:06,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:06,614 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:06,614 INFO L410 AbstractCegarLoop]: === Iteration 3 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:06,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:06,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1689360026, now seen corresponding path program 1 times [2019-10-22 08:59:06,615 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:06,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395824740] [2019-10-22 08:59:06,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,713 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 08:59:06,716 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395824740] [2019-10-22 08:59:06,717 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:06,717 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:06,717 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950392415] [2019-10-22 08:59:06,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:06,718 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:06,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:06,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:06,719 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand 4 states. [2019-10-22 08:59:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:06,867 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2019-10-22 08:59:06,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:06,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-22 08:59:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:06,869 INFO L225 Difference]: With dead ends: 70 [2019-10-22 08:59:06,869 INFO L226 Difference]: Without dead ends: 70 [2019-10-22 08:59:06,870 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 08:59:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-22 08:59:06,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-10-22 08:59:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-22 08:59:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2019-10-22 08:59:06,881 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 13 [2019-10-22 08:59:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:06,881 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2019-10-22 08:59:06,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2019-10-22 08:59:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:59:06,882 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:06,882 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:06,882 INFO L410 AbstractCegarLoop]: === Iteration 4 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1689360027, now seen corresponding path program 1 times [2019-10-22 08:59:06,886 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:06,886 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46158406] [2019-10-22 08:59:06,886 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,886 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:06,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,022 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 08:59:07,022 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46158406] [2019-10-22 08:59:07,023 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:07,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:07,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006684213] [2019-10-22 08:59:07,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:07,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:07,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:07,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:07,027 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 6 states. [2019-10-22 08:59:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:07,256 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2019-10-22 08:59:07,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:07,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-22 08:59:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:07,257 INFO L225 Difference]: With dead ends: 74 [2019-10-22 08:59:07,257 INFO L226 Difference]: Without dead ends: 74 [2019-10-22 08:59:07,258 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-22 08:59:07,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2019-10-22 08:59:07,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 08:59:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2019-10-22 08:59:07,264 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 13 [2019-10-22 08:59:07,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:07,265 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2019-10-22 08:59:07,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:07,265 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2019-10-22 08:59:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:59:07,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:07,266 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:07,266 INFO L410 AbstractCegarLoop]: === Iteration 5 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:07,267 INFO L82 PathProgramCache]: Analyzing trace with hash -294385186, now seen corresponding path program 1 times [2019-10-22 08:59:07,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:07,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904273865] [2019-10-22 08:59:07,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,362 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 08:59:07,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904273865] [2019-10-22 08:59:07,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168904034] [2019-10-22 08:59:07,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/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 08:59:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:59:07,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:07,582 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 08:59:07,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:59:07,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-10-22 08:59:07,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066314140] [2019-10-22 08:59:07,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:07,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:07,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:07,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:07,586 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 5 states. [2019-10-22 08:59:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:07,620 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2019-10-22 08:59:07,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:07,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-22 08:59:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:07,631 INFO L225 Difference]: With dead ends: 92 [2019-10-22 08:59:07,631 INFO L226 Difference]: Without dead ends: 92 [2019-10-22 08:59:07,632 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 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 08:59:07,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-22 08:59:07,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 81. [2019-10-22 08:59:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-22 08:59:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2019-10-22 08:59:07,649 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 17 [2019-10-22 08:59:07,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:07,650 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2019-10-22 08:59:07,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2019-10-22 08:59:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:59:07,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:07,651 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:07,852 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:07,852 INFO L410 AbstractCegarLoop]: === Iteration 6 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash 406679392, now seen corresponding path program 1 times [2019-10-22 08:59:07,852 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:07,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095129770] [2019-10-22 08:59:07,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,997 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 08:59:07,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095129770] [2019-10-22 08:59:07,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413702560] [2019-10-22 08:59:07,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/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 08:59:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:08,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-22 08:59:08,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:08,140 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_34|], 9=[|v_#valid_45|]} [2019-10-22 08:59:08,151 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:08,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:08,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:08,155 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:08,157 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:08,158 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:08,174 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 29 [2019-10-22 08:59:08,175 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:08,210 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:08,259 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:08,259 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 58 [2019-10-22 08:59:08,260 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:08,286 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:08,291 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:08,291 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:63, output treesize:66 [2019-10-22 08:59:08,455 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 08:59:08,457 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:08,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2019-10-22 08:59:08,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505832877] [2019-10-22 08:59:08,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:59:08,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:08,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:59:08,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:59:08,459 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 10 states. [2019-10-22 08:59:08,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:08,875 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2019-10-22 08:59:08,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:08,876 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-10-22 08:59:08,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:08,877 INFO L225 Difference]: With dead ends: 82 [2019-10-22 08:59:08,877 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 08:59:08,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:08,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 08:59:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2019-10-22 08:59:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 08:59:08,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2019-10-22 08:59:08,884 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 17 [2019-10-22 08:59:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:08,884 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2019-10-22 08:59:08,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:59:08,884 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2019-10-22 08:59:08,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:59:08,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:08,885 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:09,085 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:09,086 INFO L410 AbstractCegarLoop]: === Iteration 7 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:09,086 INFO L82 PathProgramCache]: Analyzing trace with hash 563630413, now seen corresponding path program 1 times [2019-10-22 08:59:09,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:09,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806708571] [2019-10-22 08:59:09,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,135 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 08:59:09,136 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806708571] [2019-10-22 08:59:09,136 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:09,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:09,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505993522] [2019-10-22 08:59:09,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:09,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:09,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:09,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:09,137 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 4 states. [2019-10-22 08:59:09,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:09,257 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2019-10-22 08:59:09,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:09,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-10-22 08:59:09,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:09,258 INFO L225 Difference]: With dead ends: 79 [2019-10-22 08:59:09,258 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 08:59:09,258 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 08:59:09,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 08:59:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-10-22 08:59:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 08:59:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2019-10-22 08:59:09,262 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 19 [2019-10-22 08:59:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:09,263 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2019-10-22 08:59:09,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2019-10-22 08:59:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:59:09,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:09,265 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:09,266 INFO L410 AbstractCegarLoop]: === Iteration 8 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:09,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:09,266 INFO L82 PathProgramCache]: Analyzing trace with hash 563630414, now seen corresponding path program 1 times [2019-10-22 08:59:09,266 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:09,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191070376] [2019-10-22 08:59:09,266 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,266 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,345 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 08:59:09,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191070376] [2019-10-22 08:59:09,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:09,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:59:09,346 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87934761] [2019-10-22 08:59:09,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:59:09,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:09,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:59:09,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:59:09,347 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 7 states. [2019-10-22 08:59:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:09,518 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2019-10-22 08:59:09,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:09,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-10-22 08:59:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:09,519 INFO L225 Difference]: With dead ends: 83 [2019-10-22 08:59:09,519 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 08:59:09,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:09,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 08:59:09,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-10-22 08:59:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-22 08:59:09,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2019-10-22 08:59:09,525 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 19 [2019-10-22 08:59:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:09,525 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2019-10-22 08:59:09,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:59:09,525 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2019-10-22 08:59:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:59:09,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:09,526 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:09,526 INFO L410 AbstractCegarLoop]: === Iteration 9 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:09,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:09,527 INFO L82 PathProgramCache]: Analyzing trace with hash -23129087, now seen corresponding path program 1 times [2019-10-22 08:59:09,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:09,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483027403] [2019-10-22 08:59:09,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:09,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483027403] [2019-10-22 08:59:09,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674554980] [2019-10-22 08:59:09,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/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 08:59:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-22 08:59:09,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:09,796 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_35|], 6=[|v_#valid_46|]} [2019-10-22 08:59:09,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:09,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:09,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:09,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:09,811 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:09,823 INFO L341 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2019-10-22 08:59:09,823 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 29 [2019-10-22 08:59:09,824 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:09,850 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:09,872 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:09,872 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2019-10-22 08:59:09,873 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:09,914 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:09,917 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:09,917 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:55, output treesize:62 [2019-10-22 08:59:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:10,059 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:10,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2019-10-22 08:59:10,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48700719] [2019-10-22 08:59:10,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:59:10,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:10,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:59:10,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:10,061 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 11 states. [2019-10-22 08:59:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:10,444 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2019-10-22 08:59:10,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:10,445 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-10-22 08:59:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:10,445 INFO L225 Difference]: With dead ends: 82 [2019-10-22 08:59:10,445 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 08:59:10,446 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:59:10,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 08:59:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2019-10-22 08:59:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 08:59:10,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2019-10-22 08:59:10,450 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 19 [2019-10-22 08:59:10,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:10,450 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2019-10-22 08:59:10,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:59:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2019-10-22 08:59:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:59:10,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:10,451 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:10,654 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:10,654 INFO L410 AbstractCegarLoop]: === Iteration 10 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:10,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:10,654 INFO L82 PathProgramCache]: Analyzing trace with hash 256944145, now seen corresponding path program 1 times [2019-10-22 08:59:10,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:10,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096454867] [2019-10-22 08:59:10,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:10,655 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:10,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:10,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096454867] [2019-10-22 08:59:10,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117487993] [2019-10-22 08:59:10,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:59:10,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:10,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:59:10,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-10-22 08:59:10,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021411530] [2019-10-22 08:59:10,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:10,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:10,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:10,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:10,852 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 5 states. [2019-10-22 08:59:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:10,887 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2019-10-22 08:59:10,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:10,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-10-22 08:59:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:10,889 INFO L225 Difference]: With dead ends: 103 [2019-10-22 08:59:10,889 INFO L226 Difference]: Without dead ends: 103 [2019-10-22 08:59:10,889 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 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 08:59:10,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-10-22 08:59:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2019-10-22 08:59:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-10-22 08:59:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2019-10-22 08:59:10,896 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 23 [2019-10-22 08:59:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:10,896 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2019-10-22 08:59:10,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2019-10-22 08:59:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:59:10,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:10,897 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:11,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:11,098 INFO L410 AbstractCegarLoop]: === Iteration 11 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -764124209, now seen corresponding path program 1 times [2019-10-22 08:59:11,098 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:11,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129304266] [2019-10-22 08:59:11,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:11,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:11,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:11,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129304266] [2019-10-22 08:59:11,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862643027] [2019-10-22 08:59:11,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:11,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-22 08:59:11,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:11,288 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_36|], 3=[|v_#valid_47|]} [2019-10-22 08:59:11,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:11,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:11,299 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:11,340 INFO L341 Elim1Store]: treesize reduction 18, result has 72.3 percent of original size [2019-10-22 08:59:11,340 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 61 [2019-10-22 08:59:11,341 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:11,374 INFO L567 ElimStorePlain]: treesize reduction 24, result has 69.2 percent of original size [2019-10-22 08:59:11,380 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 18 treesize of output 16 [2019-10-22 08:59:11,380 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:11,394 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:11,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:11,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:11,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:11,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:11,403 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:11,403 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:41, output treesize:89 [2019-10-22 08:59:11,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:11,547 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:11,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2019-10-22 08:59:11,548 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260638618] [2019-10-22 08:59:11,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:59:11,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:59:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:11,549 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 11 states. [2019-10-22 08:59:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:11,691 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2019-10-22 08:59:11,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:11,692 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2019-10-22 08:59:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:11,693 INFO L225 Difference]: With dead ends: 100 [2019-10-22 08:59:11,693 INFO L226 Difference]: Without dead ends: 100 [2019-10-22 08:59:11,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:59:11,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-22 08:59:11,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2019-10-22 08:59:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-10-22 08:59:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2019-10-22 08:59:11,705 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 23 [2019-10-22 08:59:11,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:11,705 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2019-10-22 08:59:11,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:59:11,705 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2019-10-22 08:59:11,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:59:11,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:11,706 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 08:59:11,906 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:11,907 INFO L410 AbstractCegarLoop]: === Iteration 12 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:11,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:11,907 INFO L82 PathProgramCache]: Analyzing trace with hash 690818164, now seen corresponding path program 1 times [2019-10-22 08:59:11,907 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:11,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958404302] [2019-10-22 08:59:11,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:11,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:11,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:11,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958404302] [2019-10-22 08:59:11,950 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:11,950 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:11,950 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071892227] [2019-10-22 08:59:11,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:11,951 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:11,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:11,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:11,951 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 6 states. [2019-10-22 08:59:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:12,090 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2019-10-22 08:59:12,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:12,090 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-10-22 08:59:12,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:12,091 INFO L225 Difference]: With dead ends: 94 [2019-10-22 08:59:12,091 INFO L226 Difference]: Without dead ends: 94 [2019-10-22 08:59:12,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-22 08:59:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-10-22 08:59:12,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-22 08:59:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2019-10-22 08:59:12,095 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 27 [2019-10-22 08:59:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:12,101 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2019-10-22 08:59:12,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2019-10-22 08:59:12,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:59:12,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:12,102 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 08:59:12,102 INFO L410 AbstractCegarLoop]: === Iteration 13 === [knapsackErr17REQUIRES_VIOLATION, knapsackErr6REQUIRES_VIOLATION, knapsackErr7REQUIRES_VIOLATION, knapsackErr18REQUIRES_VIOLATION, knapsackErr19REQUIRES_VIOLATION, knapsackErr8REQUIRES_VIOLATION, knapsackErr9REQUIRES_VIOLATION, knapsackErr10REQUIRES_VIOLATION, knapsackErr11REQUIRES_VIOLATION, knapsackErr0REQUIRES_VIOLATION, knapsackErr1REQUIRES_VIOLATION, knapsackErr12REQUIRES_VIOLATION, knapsackErr13REQUIRES_VIOLATION, knapsackErr2REQUIRES_VIOLATION, knapsackErr3REQUIRES_VIOLATION, knapsackErr14REQUIRES_VIOLATION, knapsackErr15REQUIRES_VIOLATION, knapsackErr4REQUIRES_VIOLATION, knapsackErr5REQUIRES_VIOLATION, knapsackErr16REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-10-22 08:59:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:12,102 INFO L82 PathProgramCache]: Analyzing trace with hash 690818165, now seen corresponding path program 1 times [2019-10-22 08:59:12,102 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:12,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460370141] [2019-10-22 08:59:12,103 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,103 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,217 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:12,217 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:59:12,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:12 BoogieIcfgContainer [2019-10-22 08:59:12,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:12,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:12,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:12,259 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:12,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:05" (3/4) ... [2019-10-22 08:59:12,262 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:59:12,323 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9e2cc794-7bf3-46cb-93d8-7ec1e4bb8fcf/bin/uautomizer/witness.graphml [2019-10-22 08:59:12,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:12,325 INFO L168 Benchmark]: Toolchain (without parser) took 8193.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -235.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:12,325 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:12,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,326 INFO L168 Benchmark]: Boogie Preprocessor took 81.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,326 INFO L168 Benchmark]: RCFGBuilder took 578.45 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,326 INFO L168 Benchmark]: TraceAbstraction took 6929.01 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -116.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:12,327 INFO L168 Benchmark]: Witness Printer took 64.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:12,328 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 535.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 578.45 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6929.01 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -116.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 64.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 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: 517]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND TRUE N < 1 [L530] N = 1 VAL [M=0, N=1] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, best={-2:0}, cost={1:0}, i=0, M=1, N=1, size={-3:0}, val={-1:0}] [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, __VERIFIER_nondet_int()=1, best={-2:0}, cost={1:0}, i=0, M=1, N=1, size={-3:0}, val={-1:0}] [L543] val[i] = __VERIFIER_nondet_int() VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, __VERIFIER_nondet_int()=1, best={-2:0}, cost={1:0}, i=0, M=1, N=1, size={-3:0}, val={-1:0}] [L540] i++ VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, best={-2:0}, cost={1:0}, i=1, M=1, N=1, size={-3:0}, val={-1:0}] [L540] COND FALSE !(i < N) VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, best={-2:0}, cost={1:0}, i=1, M=1, N=1, size={-3:0}, val={-1:0}] [L546] int i = 0; VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, best={-2:0}, cost={1:0}, i=1, i=0, M=1, N=1, size={-3:0}, val={-1:0}] [L546] COND TRUE i < M [L548] cost[i] = __VERIFIER_nondet_int() VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, __VERIFIER_nondet_int()=1, best={-2:0}, cost={1:0}, i=1, i=0, M=1, N=1, size={-3:0}, val={-1:0}] [L546] i++ VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, best={-2:0}, cost={1:0}, i=1, i=1, M=1, N=1, size={-3:0}, val={-1:0}] [L546] COND FALSE !(i < M) VAL [__builtin_alloca (M * sizeof(int))={1:0}, __builtin_alloca (M * sizeof(int))={-2:0}, __builtin_alloca (N * sizeof(int))={-1:0}, __builtin_alloca (N * sizeof(int))={-3:0}, best={-2:0}, cost={1:0}, i=1, i=1, M=1, N=1, size={-3:0}, val={-1:0}] [L551] CALL knapsack(size, val, N, cost, best, M) VAL [\old(M)=1, \old(N)=1, best={-2:0}, cost={1:0}, size={-3:0}, val={-1:0}] [L514] int i, j; [L515] j = 1 VAL [\old(M)=1, \old(N)=1, best={-2:0}, best={-2:0}, cost={1:0}, cost={1:0}, j=1, M=1, N=1, size={-3:0}, size={-3:0}, val={-1:0}, val={-1:0}] [L515] COND TRUE j <= N [L516] i = 1 VAL [\old(M)=1, \old(N)=1, best={-2:0}, best={-2:0}, cost={1:0}, cost={1:0}, i=1, j=1, M=1, N=1, size={-3:0}, size={-3:0}, val={-1:0}, val={-1:0}] [L516] COND TRUE i <= M VAL [\old(M)=1, \old(N)=1, best={-2:0}, best={-2:0}, cost={1:0}, cost={1:0}, i=1, j=1, M=1, N=1, size={-3:0}, size={-3:0}, val={-1:0}, val={-1:0}] [L517] size[j] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 88 locations, 27 error locations. Result: UNSAFE, OverallTime: 6.8s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 590 SDtfs, 967 SDslu, 491 SDs, 0 SdLazy, 1657 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 36 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 294 ConstructedInterpolants, 32 QuantifiedInterpolants, 59278 SizeOfPredicates, 26 NumberOfNonLiveVariables, 564 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 20/32 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...