./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/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 822411a57a10ce043cb0121fce52bdc7e9506783 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:29:40,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:29:40,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:29:40,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:29:40,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:29:40,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:29:40,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:29:40,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:29:40,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:29:40,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:29:40,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:29:40,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:29:40,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:29:40,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:29:40,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:29:40,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:29:40,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:29:40,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:29:40,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:29:40,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:29:40,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:29:40,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:29:40,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:29:40,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:29:40,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:29:40,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:29:40,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:29:40,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:29:40,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:29:40,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:29:40,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:29:40,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:29:40,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:29:40,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:29:40,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:29:40,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:29:40,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:29:40,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:29:40,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:29:40,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:29:40,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:29:40,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 00:29:40,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:29:40,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:29:40,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:29:40,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:29:40,834 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:29:40,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:29:40,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:29:40,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:29:40,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:29:40,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:29:40,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:29:40,836 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 00:29:40,837 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 00:29:40,837 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 00:29:40,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:29:40,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:29:40,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:29:40,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:29:40,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:29:40,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:29:40,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:29:40,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:29:40,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:29:40,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:29:40,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:29:40,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:29:40,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/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 -> 822411a57a10ce043cb0121fce52bdc7e9506783 [2019-11-16 00:29:40,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:29:40,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:29:40,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:29:40,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:29:40,887 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:29:40,888 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2019-11-16 00:29:40,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/data/d68cbc2ba/312265413c4b4a1c8fde2a46a2354f9e/FLAGddeb0675d [2019-11-16 00:29:41,439 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:29:41,439 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2019-11-16 00:29:41,459 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/data/d68cbc2ba/312265413c4b4a1c8fde2a46a2354f9e/FLAGddeb0675d [2019-11-16 00:29:41,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/data/d68cbc2ba/312265413c4b4a1c8fde2a46a2354f9e [2019-11-16 00:29:41,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:29:41,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-16 00:29:41,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:29:41,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:29:41,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:29:41,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:41" (1/1) ... [2019-11-16 00:29:41,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92d6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:41, skipping insertion in model container [2019-11-16 00:29:41,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:41" (1/1) ... [2019-11-16 00:29:41,732 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:29:41,781 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:29:42,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:29:42,268 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:29:42,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:29:42,373 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:29:42,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42 WrapperNode [2019-11-16 00:29:42,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:29:42,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:29:42,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:29:42,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:29:42,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... [2019-11-16 00:29:42,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:29:42,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:29:42,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:29:42,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:29:42,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/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 [2019-11-16 00:29:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-16 00:29:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:29:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-16 00:29:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-16 00:29:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-16 00:29:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-16 00:29:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-16 00:29:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cbzero [2019-11-16 00:29:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-16 00:29:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-16 00:29:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-16 00:29:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-16 00:29:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-16 00:29:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-16 00:29:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-16 00:29:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-16 00:29:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-16 00:29:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-16 00:29:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-16 00:29:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-16 00:29:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-16 00:29:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-16 00:29:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-16 00:29:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-16 00:29:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-16 00:29:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-16 00:29:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-16 00:29:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-16 00:29:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-16 00:29:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-16 00:29:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-16 00:29:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-16 00:29:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-16 00:29:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-16 00:29:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-16 00:29:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-16 00:29:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-16 00:29:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-16 00:29:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-16 00:29:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-16 00:29:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-16 00:29:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-16 00:29:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-16 00:29:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-16 00:29:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-16 00:29:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-16 00:29:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-16 00:29:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-16 00:29:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-16 00:29:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-16 00:29:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-16 00:29:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-16 00:29:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-16 00:29:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-16 00:29:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-16 00:29:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-16 00:29:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-16 00:29:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-16 00:29:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-16 00:29:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-16 00:29:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-16 00:29:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-16 00:29:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-16 00:29:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-16 00:29:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-16 00:29:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-16 00:29:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-16 00:29:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-16 00:29:42,516 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-16 00:29:42,517 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-16 00:29:42,518 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-16 00:29:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-16 00:29:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-16 00:29:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-16 00:29:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-16 00:29:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-16 00:29:42,519 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-16 00:29:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-16 00:29:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-16 00:29:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-16 00:29:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-16 00:29:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-16 00:29:42,520 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-16 00:29:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-16 00:29:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-16 00:29:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-16 00:29:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-16 00:29:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure cbzero [2019-11-16 00:29:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:29:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-16 00:29:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:29:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:29:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-16 00:29:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:29:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:29:43,041 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:29:43,041 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-16 00:29:43,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:43 BoogieIcfgContainer [2019-11-16 00:29:43,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:29:43,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:29:43,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:29:43,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:29:43,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:29:41" (1/3) ... [2019-11-16 00:29:43,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9ad4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:29:43, skipping insertion in model container [2019-11-16 00:29:43,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42" (2/3) ... [2019-11-16 00:29:43,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9ad4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:29:43, skipping insertion in model container [2019-11-16 00:29:43,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:43" (3/3) ... [2019-11-16 00:29:43,050 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cbzero-alloca-2.i [2019-11-16 00:29:43,061 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:29:43,069 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-16 00:29:43,081 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-16 00:29:43,099 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:29:43,099 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-16 00:29:43,099 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:29:43,100 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:29:43,100 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:29:43,100 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:29:43,100 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:29:43,100 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:29:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-16 00:29:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-16 00:29:43,126 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:43,127 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:43,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:43,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1664038058, now seen corresponding path program 1 times [2019-11-16 00:29:43,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:43,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357952916] [2019-11-16 00:29:43,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:43,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:43,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:43,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357952916] [2019-11-16 00:29:43,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:43,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:29:43,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530045262] [2019-11-16 00:29:43,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:29:43,335 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:29:43,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:29:43,348 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2019-11-16 00:29:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:43,552 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-11-16 00:29:43,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:29:43,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-16 00:29:43,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:43,561 INFO L225 Difference]: With dead ends: 28 [2019-11-16 00:29:43,561 INFO L226 Difference]: Without dead ends: 23 [2019-11-16 00:29:43,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:29:43,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-16 00:29:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-16 00:29:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-16 00:29:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-11-16 00:29:43,593 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 10 [2019-11-16 00:29:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:43,594 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-11-16 00:29:43,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:29:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-11-16 00:29:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-16 00:29:43,595 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:43,595 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:43,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:43,596 INFO L82 PathProgramCache]: Analyzing trace with hash 469198071, now seen corresponding path program 1 times [2019-11-16 00:29:43,596 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:43,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801778972] [2019-11-16 00:29:43,596 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:43,597 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:43,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:43,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801778972] [2019-11-16 00:29:43,710 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:43,710 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-16 00:29:43,710 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381619773] [2019-11-16 00:29:43,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:29:43,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:43,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:29:43,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:29:43,712 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 7 states. [2019-11-16 00:29:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:43,885 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-11-16 00:29:43,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:29:43,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-11-16 00:29:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:43,887 INFO L225 Difference]: With dead ends: 21 [2019-11-16 00:29:43,887 INFO L226 Difference]: Without dead ends: 21 [2019-11-16 00:29:43,888 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:29:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-16 00:29:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-16 00:29:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-16 00:29:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-11-16 00:29:43,892 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 14 [2019-11-16 00:29:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:43,892 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-11-16 00:29:43,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:29:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-11-16 00:29:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-16 00:29:43,894 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:43,894 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:43,895 INFO L410 AbstractCegarLoop]: === Iteration 3 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:43,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:43,895 INFO L82 PathProgramCache]: Analyzing trace with hash 469198072, now seen corresponding path program 1 times [2019-11-16 00:29:43,895 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:43,896 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714329745] [2019-11-16 00:29:43,896 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:43,896 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:43,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:44,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714329745] [2019-11-16 00:29:44,098 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:44,098 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-16 00:29:44,099 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712054491] [2019-11-16 00:29:44,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:29:44,099 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:44,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:29:44,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:29:44,100 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 8 states. [2019-11-16 00:29:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:44,335 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-11-16 00:29:44,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:29:44,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-16 00:29:44,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:44,340 INFO L225 Difference]: With dead ends: 27 [2019-11-16 00:29:44,340 INFO L226 Difference]: Without dead ends: 27 [2019-11-16 00:29:44,341 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-11-16 00:29:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-16 00:29:44,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-11-16 00:29:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-16 00:29:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-11-16 00:29:44,346 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2019-11-16 00:29:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:44,347 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-11-16 00:29:44,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:29:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-11-16 00:29:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:29:44,348 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:44,348 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:44,348 INFO L410 AbstractCegarLoop]: === Iteration 4 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:44,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2054568730, now seen corresponding path program 1 times [2019-11-16 00:29:44,352 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:44,352 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573804472] [2019-11-16 00:29:44,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:44,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:44,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:44,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573804472] [2019-11-16 00:29:44,507 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:44,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-16 00:29:44,507 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149848928] [2019-11-16 00:29:44,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:29:44,508 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:44,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:29:44,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:29:44,509 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 8 states. [2019-11-16 00:29:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:44,755 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-16 00:29:44,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-16 00:29:44,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-16 00:29:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:44,758 INFO L225 Difference]: With dead ends: 34 [2019-11-16 00:29:44,758 INFO L226 Difference]: Without dead ends: 34 [2019-11-16 00:29:44,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-11-16 00:29:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-16 00:29:44,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2019-11-16 00:29:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-16 00:29:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-11-16 00:29:44,768 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2019-11-16 00:29:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:44,769 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-11-16 00:29:44,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:29:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-11-16 00:29:44,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:29:44,770 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:44,770 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:44,770 INFO L410 AbstractCegarLoop]: === Iteration 5 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:44,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:44,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1661541720, now seen corresponding path program 1 times [2019-11-16 00:29:44,771 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:44,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035907589] [2019-11-16 00:29:44,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:44,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:44,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:44,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035907589] [2019-11-16 00:29:44,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:44,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-16 00:29:44,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146950177] [2019-11-16 00:29:44,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-16 00:29:44,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:44,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-16 00:29:44,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:29:44,971 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 10 states. [2019-11-16 00:29:45,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:45,275 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-11-16 00:29:45,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-16 00:29:45,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-16 00:29:45,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:45,276 INFO L225 Difference]: With dead ends: 28 [2019-11-16 00:29:45,276 INFO L226 Difference]: Without dead ends: 26 [2019-11-16 00:29:45,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2019-11-16 00:29:45,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-16 00:29:45,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2019-11-16 00:29:45,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-16 00:29:45,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-11-16 00:29:45,281 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 17 [2019-11-16 00:29:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:45,281 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-11-16 00:29:45,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-16 00:29:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-11-16 00:29:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:29:45,283 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:45,294 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:45,294 INFO L410 AbstractCegarLoop]: === Iteration 6 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:45,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:45,295 INFO L82 PathProgramCache]: Analyzing trace with hash -684268688, now seen corresponding path program 1 times [2019-11-16 00:29:45,295 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:45,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053436478] [2019-11-16 00:29:45,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:45,295 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:45,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:45,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053436478] [2019-11-16 00:29:45,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382721294] [2019-11-16 00:29:45,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:45,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-16 00:29:45,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:29:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:45,693 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:29:45,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 9 [2019-11-16 00:29:45,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263166001] [2019-11-16 00:29:45,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-16 00:29:45,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:45,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-16 00:29:45,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:29:45,694 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 9 states. [2019-11-16 00:29:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:45,936 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2019-11-16 00:29:45,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-16 00:29:45,936 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-11-16 00:29:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:45,937 INFO L225 Difference]: With dead ends: 38 [2019-11-16 00:29:45,937 INFO L226 Difference]: Without dead ends: 38 [2019-11-16 00:29:45,938 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-16 00:29:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-16 00:29:45,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2019-11-16 00:29:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-16 00:29:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-16 00:29:45,942 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 18 [2019-11-16 00:29:45,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:45,943 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-16 00:29:45,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-16 00:29:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-16 00:29:45,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:29:45,944 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:45,944 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:46,153 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:46,153 INFO L410 AbstractCegarLoop]: === Iteration 7 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:46,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:46,154 INFO L82 PathProgramCache]: Analyzing trace with hash 16795890, now seen corresponding path program 1 times [2019-11-16 00:29:46,154 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:46,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276191352] [2019-11-16 00:29:46,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:46,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:46,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:46,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:46,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276191352] [2019-11-16 00:29:46,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532431246] [2019-11-16 00:29:46,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:46,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-16 00:29:46,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:29:46,675 INFO L375 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 [2019-11-16 00:29:46,675 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:29:46,685 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:29:46,685 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:29:46,686 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:12 [2019-11-16 00:29:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:46,982 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:29:46,982 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2019-11-16 00:29:46,982 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567079965] [2019-11-16 00:29:46,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-16 00:29:46,983 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:46,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-16 00:29:46,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2019-11-16 00:29:46,983 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 20 states. [2019-11-16 00:29:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:47,594 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2019-11-16 00:29:47,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-16 00:29:47,595 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 18 [2019-11-16 00:29:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:47,596 INFO L225 Difference]: With dead ends: 40 [2019-11-16 00:29:47,596 INFO L226 Difference]: Without dead ends: 40 [2019-11-16 00:29:47,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=649, Unknown=0, NotChecked=0, Total=756 [2019-11-16 00:29:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-16 00:29:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2019-11-16 00:29:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-16 00:29:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2019-11-16 00:29:47,602 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2019-11-16 00:29:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:47,602 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2019-11-16 00:29:47,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-16 00:29:47,603 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2019-11-16 00:29:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-16 00:29:47,603 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:47,603 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:47,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:47,805 INFO L410 AbstractCegarLoop]: === Iteration 8 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:47,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:47,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1135310430, now seen corresponding path program 1 times [2019-11-16 00:29:47,805 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:47,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483601230] [2019-11-16 00:29:47,805 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:47,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:47,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-16 00:29:47,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483601230] [2019-11-16 00:29:47,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:29:47,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:29:47,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826310821] [2019-11-16 00:29:47,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:29:47,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:47,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:29:47,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:29:47,916 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 6 states. [2019-11-16 00:29:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:48,008 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-16 00:29:48,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:29:48,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-16 00:29:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:48,009 INFO L225 Difference]: With dead ends: 38 [2019-11-16 00:29:48,009 INFO L226 Difference]: Without dead ends: 23 [2019-11-16 00:29:48,010 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:29:48,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-16 00:29:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-16 00:29:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-16 00:29:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2019-11-16 00:29:48,013 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2019-11-16 00:29:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:48,013 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2019-11-16 00:29:48,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:29:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2019-11-16 00:29:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:29:48,014 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:29:48,014 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:29:48,014 INFO L410 AbstractCegarLoop]: === Iteration 9 === [cbzeroErr0REQUIRES_VIOLATION, cbzeroErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-11-16 00:29:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:29:48,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2066138518, now seen corresponding path program 2 times [2019-11-16 00:29:48,015 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:29:48,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621323247] [2019-11-16 00:29:48,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:48,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:29:48,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:29:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:29:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:48,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621323247] [2019-11-16 00:29:48,379 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631408294] [2019-11-16 00:29:48,379 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:48,500 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-16 00:29:48,500 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:29:48,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 55 conjunts are in the unsatisfiable core [2019-11-16 00:29:48,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:29:48,514 INFO L375 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 [2019-11-16 00:29:48,514 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:29:48,521 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:29:48,521 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:29:48,522 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:12 [2019-11-16 00:29:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:29:48,919 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:29:48,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2019-11-16 00:29:48,919 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774892349] [2019-11-16 00:29:48,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-16 00:29:48,920 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:29:48,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-16 00:29:48,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2019-11-16 00:29:48,921 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 25 states. [2019-11-16 00:29:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:29:49,780 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-16 00:29:49,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-16 00:29:49,782 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 22 [2019-11-16 00:29:49,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:29:49,783 INFO L225 Difference]: With dead ends: 27 [2019-11-16 00:29:49,783 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:29:49,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=187, Invalid=1295, Unknown=0, NotChecked=0, Total=1482 [2019-11-16 00:29:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:29:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:29:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:29:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:29:49,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-16 00:29:49,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:29:49,785 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:29:49,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-16 00:29:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:29:49,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:29:49,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:29:49,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:29:49 BoogieIcfgContainer [2019-11-16 00:29:49,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:29:49,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:29:49,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:29:49,993 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:29:49,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:29:43" (3/4) ... [2019-11-16 00:29:49,998 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:29:50,005 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-16 00:29:50,005 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-16 00:29:50,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-16 00:29:50,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-16 00:29:50,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-16 00:29:50,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cbzero [2019-11-16 00:29:50,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-16 00:29:50,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-16 00:29:50,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-16 00:29:50,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-16 00:29:50,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-16 00:29:50,049 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_043dd965-dac0-4d82-9626-a87564c8eba9/bin/uautomizer/witness.graphml [2019-11-16 00:29:50,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:29:50,051 INFO L168 Benchmark]: Toolchain (without parser) took 8337.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 946.1 MB in the beginning and 928.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 192.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:50,052 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:29:50,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:50,053 INFO L168 Benchmark]: Boogie Preprocessor took 56.32 ms. Allocated memory is still 1.1 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. [2019-11-16 00:29:50,053 INFO L168 Benchmark]: RCFGBuilder took 610.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:50,054 INFO L168 Benchmark]: TraceAbstraction took 6948.06 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 930.5 MB in the end (delta: 120.4 MB). Peak memory consumption was 178.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:50,054 INFO L168 Benchmark]: Witness Printer took 57.83 ms. Allocated memory is still 1.2 GB. Free memory was 930.5 MB in the beginning and 928.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:29:50,057 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 659.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.32 ms. Allocated memory is still 1.1 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 610.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6948.06 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 930.5 MB in the end (delta: 120.4 MB). Peak memory consumption was 178.1 MB. Max. memory is 11.5 GB. * Witness Printer took 57.83 ms. Allocated memory is still 1.2 GB. Free memory was 930.5 MB in the beginning and 928.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 517]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 517]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 40 locations, 3 error locations. Result: SAFE, OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 275 SDslu, 327 SDs, 0 SdLazy, 1075 SolverSat, 131 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 16 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 197 ConstructedInterpolants, 2 QuantifiedInterpolants, 23045 SizeOfPredicates, 27 NumberOfNonLiveVariables, 324 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 6/34 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 correct! Received shutdown request...