./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/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 ef75293aeb91e37969e4557310245e0c38a479cd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:37:28,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:37:28,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:37:28,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:37:28,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:37:28,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:37:28,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:37:28,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:37:28,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:37:28,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:37:28,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:37:28,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:37:28,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:37:28,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:37:28,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:37:28,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:37:28,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:37:28,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:37:28,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:37:28,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:37:28,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:37:28,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:37:28,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:37:28,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:37:28,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:37:28,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:37:28,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:37:28,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:37:28,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:37:28,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:37:28,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:37:28,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:37:28,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:37:28,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:37:28,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:37:28,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:37:28,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:37:28,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:37:28,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:37:28,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:37:28,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:37:28,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 11:37:28,590 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:37:28,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:37:28,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:37:28,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:37:28,592 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:37:28,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:37:28,593 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:37:28,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:37:28,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:37:28,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:37:28,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:37:28,595 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 11:37:28,595 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 11:37:28,595 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 11:37:28,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:37:28,595 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:37:28,596 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:37:28,596 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:37:28,596 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:37:28,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:37:28,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:37:28,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:37:28,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:37:28,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:37:28,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:37:28,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:37:28,598 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:37:28,598 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:37:28,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:37:28,599 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/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 -> ef75293aeb91e37969e4557310245e0c38a479cd [2019-11-20 11:37:28,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:37:28,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:37:28,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:37:28,795 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:37:28,798 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:37:28,804 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-20 11:37:28,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/data/b5a58a987/d5fb56523f4848069f4e809c0ecd8b7b/FLAGd70374cce [2019-11-20 11:37:29,308 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:37:29,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2019-11-20 11:37:29,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/data/b5a58a987/d5fb56523f4848069f4e809c0ecd8b7b/FLAGd70374cce [2019-11-20 11:37:29,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/data/b5a58a987/d5fb56523f4848069f4e809c0ecd8b7b [2019-11-20 11:37:29,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:37:29,629 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 11:37:29,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:37:29,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:37:29,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:37:29,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:29" (1/1) ... [2019-11-20 11:37:29,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a03287d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:29, skipping insertion in model container [2019-11-20 11:37:29,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:29" (1/1) ... [2019-11-20 11:37:29,650 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:37:29,715 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:37:30,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:37:30,187 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:37:30,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:37:30,336 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:37:30,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30 WrapperNode [2019-11-20 11:37:30,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:37:30,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:37:30,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:37:30,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:37:30,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... [2019-11-20 11:37:30,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:37:30,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:37:30,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:37:30,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:37:30,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/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 [2019-11-20 11:37:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 11:37:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:37:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 11:37:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 11:37:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 11:37:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 11:37:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 11:37:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2019-11-20 11:37:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 11:37:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2019-11-20 11:37:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 11:37:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 11:37:30,493 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 11:37:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 11:37:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 11:37:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 11:37:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 11:37:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 11:37:30,494 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 11:37:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 11:37:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 11:37:30,497 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 11:37:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 11:37:30,499 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 11:37:30,500 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 11:37:30,501 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 11:37:30,502 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 11:37:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 11:37:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 11:37:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 11:37:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 11:37:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 11:37:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 11:37:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 11:37:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 11:37:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 11:37:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 11:37:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 11:37:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 11:37:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 11:37:30,507 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 11:37:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 11:37:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 11:37:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 11:37:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2019-11-20 11:37:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2019-11-20 11:37:30,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:37:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:37:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 11:37:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:37:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 11:37:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:37:30,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:37:31,051 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:37:31,051 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 11:37:31,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:31 BoogieIcfgContainer [2019-11-20 11:37:31,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:37:31,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:37:31,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:37:31,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:37:31,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:37:29" (1/3) ... [2019-11-20 11:37:31,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c47f05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:31, skipping insertion in model container [2019-11-20 11:37:31,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:30" (2/3) ... [2019-11-20 11:37:31,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c47f05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:31, skipping insertion in model container [2019-11-20 11:37:31,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:31" (3/3) ... [2019-11-20 11:37:31,061 INFO L109 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2019-11-20 11:37:31,074 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:37:31,083 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-11-20 11:37:31,095 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-11-20 11:37:31,123 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:37:31,123 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 11:37:31,123 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:37:31,123 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:37:31,123 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:37:31,124 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:37:31,124 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:37:31,124 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:37:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 11:37:31,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 11:37:31,149 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:31,149 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:31,150 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:31,155 INFO L82 PathProgramCache]: Analyzing trace with hash -908251633, now seen corresponding path program 1 times [2019-11-20 11:37:31,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:31,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1827944196] [2019-11-20 11:37:31,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:31,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:37:31,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:31,472 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:31,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1827944196] [2019-11-20 11:37:31,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:31,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:37:31,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368801490] [2019-11-20 11:37:31,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:37:31,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:31,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:37:31,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:31,515 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2019-11-20 11:37:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:31,651 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2019-11-20 11:37:31,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:37:31,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-20 11:37:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:31,669 INFO L225 Difference]: With dead ends: 55 [2019-11-20 11:37:31,670 INFO L226 Difference]: Without dead ends: 51 [2019-11-20 11:37:31,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:31,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-11-20 11:37:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2019-11-20 11:37:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:37:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-11-20 11:37:31,739 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2019-11-20 11:37:31,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:31,739 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-11-20 11:37:31,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:37:31,756 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-11-20 11:37:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 11:37:31,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:31,756 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:31,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:31,959 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:31,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1908971100, now seen corresponding path program 1 times [2019-11-20 11:37:31,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:31,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [980943919] [2019-11-20 11:37:31,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:32,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:37:32,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:32,177 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:32,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [980943919] [2019-11-20 11:37:32,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:32,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-20 11:37:32,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068587327] [2019-11-20 11:37:32,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:37:32,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:32,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:37:32,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:32,190 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2019-11-20 11:37:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:32,211 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-11-20 11:37:32,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:37:32,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-20 11:37:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:32,213 INFO L225 Difference]: With dead ends: 39 [2019-11-20 11:37:32,213 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 11:37:32,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:32,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 11:37:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 11:37:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 11:37:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2019-11-20 11:37:32,225 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 9 [2019-11-20 11:37:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:32,225 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2019-11-20 11:37:32,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:37:32,226 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2019-11-20 11:37:32,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 11:37:32,226 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:32,227 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:32,429 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:32,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1734096500, now seen corresponding path program 1 times [2019-11-20 11:37:32,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:32,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1900508839] [2019-11-20 11:37:32,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:32,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:37:32,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:32,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:32,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:32,691 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1900508839] [2019-11-20 11:37:32,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:32,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-20 11:37:32,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871267368] [2019-11-20 11:37:32,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:37:32,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:32,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:37:32,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:32,693 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2019-11-20 11:37:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:32,756 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-20 11:37:32,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:37:32,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-20 11:37:32,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:32,760 INFO L225 Difference]: With dead ends: 46 [2019-11-20 11:37:32,760 INFO L226 Difference]: Without dead ends: 46 [2019-11-20 11:37:32,760 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:32,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-20 11:37:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-11-20 11:37:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-20 11:37:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-11-20 11:37:32,776 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2019-11-20 11:37:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:32,776 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2019-11-20 11:37:32,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:37:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2019-11-20 11:37:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:37:32,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:32,778 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:32,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:32,979 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:32,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:32,979 INFO L82 PathProgramCache]: Analyzing trace with hash 845926542, now seen corresponding path program 1 times [2019-11-20 11:37:32,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:32,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1709143474] [2019-11-20 11:37:32,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:33,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 11:37:33,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:33,277 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:33,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1709143474] [2019-11-20 11:37:33,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:33,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 11:37:33,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224460028] [2019-11-20 11:37:33,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 11:37:33,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:33,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 11:37:33,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:37:33,318 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2019-11-20 11:37:33,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:33,411 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2019-11-20 11:37:33,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:37:33,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-20 11:37:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:33,414 INFO L225 Difference]: With dead ends: 52 [2019-11-20 11:37:33,414 INFO L226 Difference]: Without dead ends: 52 [2019-11-20 11:37:33,414 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:37:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-20 11:37:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2019-11-20 11:37:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-20 11:37:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-11-20 11:37:33,423 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2019-11-20 11:37:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:33,424 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-11-20 11:37:33,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 11:37:33,424 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-11-20 11:37:33,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:37:33,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:33,426 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:33,628 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:33,629 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:33,630 INFO L82 PathProgramCache]: Analyzing trace with hash 846850063, now seen corresponding path program 1 times [2019-11-20 11:37:33,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:33,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1337500362] [2019-11-20 11:37:33,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:33,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:37:33,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:33,996 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:37:33,996 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-20 11:37:33,997 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:37:34,031 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 11:37:34,032 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:37:34,032 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2019-11-20 11:37:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:34,055 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:34,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1337500362] [2019-11-20 11:37:34,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:34,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 11:37:34,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130628597] [2019-11-20 11:37:34,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:37:34,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:34,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:37:34,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:37:34,105 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2019-11-20 11:37:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:34,252 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2019-11-20 11:37:34,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:37:34,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-20 11:37:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:34,254 INFO L225 Difference]: With dead ends: 45 [2019-11-20 11:37:34,254 INFO L226 Difference]: Without dead ends: 45 [2019-11-20 11:37:34,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:37:34,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-20 11:37:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-11-20 11:37:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-20 11:37:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-20 11:37:34,262 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2019-11-20 11:37:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:34,262 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-20 11:37:34,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:37:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-20 11:37:34,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:37:34,264 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:34,264 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:34,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:34,468 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:34,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:34,469 INFO L82 PathProgramCache]: Analyzing trace with hash 846850064, now seen corresponding path program 1 times [2019-11-20 11:37:34,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:34,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1340439524] [2019-11-20 11:37:34,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:34,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 11:37:34,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:34,737 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 11:37:34,737 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:37:34,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:37:34,748 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:37:34,748 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-20 11:37:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:34,817 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:35,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1340439524] [2019-11-20 11:37:35,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:35,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-20 11:37:35,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783238508] [2019-11-20 11:37:35,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 11:37:35,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:35,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 11:37:35,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-20 11:37:35,454 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 12 states. [2019-11-20 11:37:36,091 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-20 11:37:36,358 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2019-11-20 11:37:36,523 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2019-11-20 11:37:36,827 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-11-20 11:37:37,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:37,308 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2019-11-20 11:37:37,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 11:37:37,309 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2019-11-20 11:37:37,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:37,310 INFO L225 Difference]: With dead ends: 121 [2019-11-20 11:37:37,311 INFO L226 Difference]: Without dead ends: 119 [2019-11-20 11:37:37,311 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2019-11-20 11:37:37,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-20 11:37:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 63. [2019-11-20 11:37:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-11-20 11:37:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2019-11-20 11:37:37,330 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 17 [2019-11-20 11:37:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:37,331 INFO L462 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2019-11-20 11:37:37,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 11:37:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2019-11-20 11:37:37,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 11:37:37,333 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:37,333 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:37,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:37,545 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:37,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:37,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1248859977, now seen corresponding path program 1 times [2019-11-20 11:37:37,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:37,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2029622709] [2019-11-20 11:37:37,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:37,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:37:37,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:37,695 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:37,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2029622709] [2019-11-20 11:37:37,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:37,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 11:37:37,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557083847] [2019-11-20 11:37:37,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 11:37:37,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:37,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:37:37,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:37,710 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 3 states. [2019-11-20 11:37:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:37,719 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2019-11-20 11:37:37,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:37:37,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 11:37:37,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:37,727 INFO L225 Difference]: With dead ends: 62 [2019-11-20 11:37:37,727 INFO L226 Difference]: Without dead ends: 62 [2019-11-20 11:37:37,727 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:37:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-20 11:37:37,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-20 11:37:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-20 11:37:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2019-11-20 11:37:37,738 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 17 [2019-11-20 11:37:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:37,738 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2019-11-20 11:37:37,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 11:37:37,739 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2019-11-20 11:37:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 11:37:37,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:37,739 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:37,940 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:37,944 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:37,944 INFO L82 PathProgramCache]: Analyzing trace with hash -59953566, now seen corresponding path program 1 times [2019-11-20 11:37:37,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:37,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1558010070] [2019-11-20 11:37:37,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:38,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:37:38,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:38,193 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:38,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1558010070] [2019-11-20 11:37:38,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:38,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 11:37:38,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081050311] [2019-11-20 11:37:38,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 11:37:38,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:38,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 11:37:38,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:37:38,286 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 10 states. [2019-11-20 11:37:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:38,475 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2019-11-20 11:37:38,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 11:37:38,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-11-20 11:37:38,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:38,477 INFO L225 Difference]: With dead ends: 61 [2019-11-20 11:37:38,477 INFO L226 Difference]: Without dead ends: 61 [2019-11-20 11:37:38,477 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-11-20 11:37:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-20 11:37:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-20 11:37:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-20 11:37:38,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2019-11-20 11:37:38,484 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 18 [2019-11-20 11:37:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:38,485 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2019-11-20 11:37:38,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 11:37:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2019-11-20 11:37:38,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:37:38,486 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:38,486 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:38,689 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:38,689 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:38,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1879296432, now seen corresponding path program 1 times [2019-11-20 11:37:38,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:38,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1196039869] [2019-11-20 11:37:38,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:38,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 11:37:38,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:38,973 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1196039869] [2019-11-20 11:37:39,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:39,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 11:37:39,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111203670] [2019-11-20 11:37:39,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:37:39,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:39,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:37:39,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:37:39,049 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 9 states. [2019-11-20 11:37:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:39,196 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2019-11-20 11:37:39,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:37:39,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-20 11:37:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:39,198 INFO L225 Difference]: With dead ends: 60 [2019-11-20 11:37:39,198 INFO L226 Difference]: Without dead ends: 60 [2019-11-20 11:37:39,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:37:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-20 11:37:39,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-20 11:37:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 11:37:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2019-11-20 11:37:39,205 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 22 [2019-11-20 11:37:39,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:39,206 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2019-11-20 11:37:39,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:37:39,206 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2019-11-20 11:37:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 11:37:39,207 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:39,207 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:39,408 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:39,408 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:39,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:39,409 INFO L82 PathProgramCache]: Analyzing trace with hash -2045618873, now seen corresponding path program 1 times [2019-11-20 11:37:39,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:39,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [721418858] [2019-11-20 11:37:39,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:39,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:37:39,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,584 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:37:39,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [721418858] [2019-11-20 11:37:39,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:39,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-20 11:37:39,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674516749] [2019-11-20 11:37:39,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:37:39,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:39,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:37:39,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:37:39,628 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 5 states. [2019-11-20 11:37:39,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:39,670 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2019-11-20 11:37:39,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:37:39,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-20 11:37:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:39,672 INFO L225 Difference]: With dead ends: 60 [2019-11-20 11:37:39,672 INFO L226 Difference]: Without dead ends: 60 [2019-11-20 11:37:39,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:37:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-20 11:37:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-20 11:37:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 11:37:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2019-11-20 11:37:39,678 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 26 [2019-11-20 11:37:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:39,678 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2019-11-20 11:37:39,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:37:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2019-11-20 11:37:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 11:37:39,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:39,680 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:39,882 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:39,883 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:39,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:39,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1774578561, now seen corresponding path program 1 times [2019-11-20 11:37:39,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:39,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [346361786] [2019-11-20 11:37:39,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:40,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 11:37:40,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:37:40,125 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:37:40,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [346361786] [2019-11-20 11:37:40,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:37:40,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-11-20 11:37:40,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037077443] [2019-11-20 11:37:40,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 11:37:40,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:40,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 11:37:40,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:37:40,176 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 7 states. [2019-11-20 11:37:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:40,304 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2019-11-20 11:37:40,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 11:37:40,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-11-20 11:37:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:40,306 INFO L225 Difference]: With dead ends: 66 [2019-11-20 11:37:40,306 INFO L226 Difference]: Without dead ends: 60 [2019-11-20 11:37:40,306 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:37:40,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-20 11:37:40,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-11-20 11:37:40,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 11:37:40,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2019-11-20 11:37:40,312 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 29 [2019-11-20 11:37:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:40,312 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2019-11-20 11:37:40,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 11:37:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2019-11-20 11:37:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 11:37:40,313 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:40,314 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:40,514 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:40,514 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:40,515 INFO L82 PathProgramCache]: Analyzing trace with hash -32875902, now seen corresponding path program 1 times [2019-11-20 11:37:40,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:40,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1028036993] [2019-11-20 11:37:40,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:40,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:37:40,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:40,713 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 11:37:40,713 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 11:37:40,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1028036993] [2019-11-20 11:37:40,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:40,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 11:37:40,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159858894] [2019-11-20 11:37:40,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:37:40,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:37:40,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:37:40,754 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 5 states. [2019-11-20 11:37:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:40,810 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2019-11-20 11:37:40,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 11:37:40,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-20 11:37:40,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:40,813 INFO L225 Difference]: With dead ends: 59 [2019-11-20 11:37:40,813 INFO L226 Difference]: Without dead ends: 59 [2019-11-20 11:37:40,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 11:37:40,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-20 11:37:40,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2019-11-20 11:37:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-20 11:37:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2019-11-20 11:37:40,819 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 29 [2019-11-20 11:37:40,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:40,819 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2019-11-20 11:37:40,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:37:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2019-11-20 11:37:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 11:37:40,821 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:40,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:41,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:41,022 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:41,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:41,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1438678298, now seen corresponding path program 1 times [2019-11-20 11:37:41,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:41,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1737613173] [2019-11-20 11:37:41,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:37:41,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:37:41,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:37:41,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:37:41,269 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:37:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 11:37:41,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737613173] [2019-11-20 11:37:41,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:37:41,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 4 [2019-11-20 11:37:41,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309015861] [2019-11-20 11:37:41,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:37:41,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:37:41,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:37:41,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:37:41,298 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 5 states. [2019-11-20 11:37:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:37:41,355 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2019-11-20 11:37:41,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 11:37:41,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-20 11:37:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:37:41,357 INFO L225 Difference]: With dead ends: 56 [2019-11-20 11:37:41,358 INFO L226 Difference]: Without dead ends: 56 [2019-11-20 11:37:41,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:37:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-20 11:37:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-11-20 11:37:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-20 11:37:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2019-11-20 11:37:41,362 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2019-11-20 11:37:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:37:41,362 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2019-11-20 11:37:41,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:37:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2019-11-20 11:37:41,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 11:37:41,364 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:37:41,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:37:41,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:41,568 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2019-11-20 11:37:41,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:37:41,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1649354337, now seen corresponding path program 1 times [2019-11-20 11:37:41,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:37:41,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [171280665] [2019-11-20 11:37:41,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:37:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:37:41,949 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 11:37:41,950 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:37:42,154 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:37:42,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:37:42 BoogieIcfgContainer [2019-11-20 11:37:42,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:37:42,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:37:42,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:37:42,227 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:37:42,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:31" (3/4) ... [2019-11-20 11:37:42,231 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 11:37:42,293 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8e994d51-bacd-4862-9713-40a936f26fd6/bin/uautomizer/witness.graphml [2019-11-20 11:37:42,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:37:42,295 INFO L168 Benchmark]: Toolchain (without parser) took 12666.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.8 MB in the beginning and 903.0 MB in the end (delta: 41.8 MB). Peak memory consumption was 211.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:42,295 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:37:42,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:42,296 INFO L168 Benchmark]: Boogie Preprocessor took 91.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:42,297 INFO L168 Benchmark]: RCFGBuilder took 622.78 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: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:42,298 INFO L168 Benchmark]: TraceAbstraction took 11170.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 1.1 GB in the beginning and 910.9 MB in the end (delta: 147.0 MB). Peak memory consumption was 186.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:42,298 INFO L168 Benchmark]: Witness Printer took 66.62 ms. Allocated memory is still 1.2 GB. Free memory was 910.9 MB in the beginning and 903.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:37:42,301 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 708.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 91.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 622.78 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: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11170.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 39.8 MB). Free memory was 1.1 GB in the beginning and 910.9 MB in the end (delta: 147.0 MB). Peak memory consumption was 186.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.62 ms. Allocated memory is still 1.2 GB. Free memory was 910.9 MB in the beginning and 903.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [\old(i)=0, \old(ind)=0, \old(newsize)=0, \old(num)=0, i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); VAL [\old(argc)=0, \old(newsize)=0, \old(num)=0, a={2:0}, argc=0, argv={0:0}, argv={0:0}, i=1, ind=0, malloc(sizeof(int))={2:0}, newsize=0, num=1] [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 VAL [\old(argc)=0, \old(newsize)=0, \old(num)=0, a={2:0}, argc=0, argv={0:0}, argv={0:0}, i=1, ind=0, malloc(sizeof(int))={2:0}, newsize=0, num=1] [L537] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={2:0}, i=1, ind=0, newsize=0, num=1] [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={2:0}] [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={2:0}, arg={2:0}, arg={2:0}, b={2:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) VAL [\old(argc)=0, \old(newsize)=0, \old(num)=0, a={2:0}, argc=0, argv={0:0}, argv={0:0}, expandArray(a)={0:0}, i=1, ind=0, malloc(sizeof(int))={2:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=0, \old(newsize)=0, \old(num)=0, a={2:0}, argc=0, argv={0:0}, argv={0:0}, i=1, ind=0, malloc(sizeof(int))={2:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=0, \old(newsize)=0, \old(num)=0, a={2:0}, argc=0, argv={0:0}, argv={0:0}, i=1, ind=0, malloc(sizeof(int))={2:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=0, \old(newsize)=0, \old(num)=0, a={2:0}, argc=0, argv={0:0}, argv={0:0}, i=1, ind=0, malloc(sizeof(int))={2:0}, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 57 locations, 9 error locations. Result: UNSAFE, OverallTime: 11.0s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 439 SDtfs, 407 SDslu, 903 SDs, 0 SdLazy, 551 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 506 GetRequests, 439 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=6, 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, 13 MinimizatonAttempts, 86 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 26039 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1248 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 42/46 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...