./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/splice-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/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 bb2202e8adc36cf09139287c61f8b63b857ea10d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally 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_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/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 bb2202e8adc36cf09139287c61f8b63b857ea10d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:37:34,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:37:34,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:37:34,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:37:34,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:37:34,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:37:34,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:37:34,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:37:34,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:37:34,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:37:34,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:37:34,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:37:34,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:37:34,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:37:34,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:37:34,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:37:34,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:37:34,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:37:34,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:37:34,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:37:34,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:37:34,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:37:34,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:37:34,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:37:34,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:37:34,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:37:34,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:37:34,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:37:34,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:37:34,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:37:34,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:37:34,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:37:34,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:37:34,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:37:34,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:37:34,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:37:34,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:37:34,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:37:34,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:37:34,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:37:34,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:37:34,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 13:37:34,737 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:37:34,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:37:34,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:37:34,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:37:34,738 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:37:34,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:37:34,738 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:37:34,738 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:37:34,739 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:37:34,740 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:37:34,740 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:37:34,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:37:34,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:37:34,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:37:34,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:37:34,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:37:34,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:37:34,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:37:34,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:37:34,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:37:34,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:37:34,741 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_0289922a-0e04-40b3-aa32-3376227c718e/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 -> bb2202e8adc36cf09139287c61f8b63b857ea10d [2019-12-07 13:37:34,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:37:34,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:37:34,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:37:34,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:37:34,856 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:37:34,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/../../sv-benchmarks/c/list-properties/splice-2.i [2019-12-07 13:37:34,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/d98546ad7/c2a14901fff245b49cca4df8150a76c9/FLAGe98941ade [2019-12-07 13:37:35,341 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:37:35,341 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/sv-benchmarks/c/list-properties/splice-2.i [2019-12-07 13:37:35,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/d98546ad7/c2a14901fff245b49cca4df8150a76c9/FLAGe98941ade [2019-12-07 13:37:35,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/d98546ad7/c2a14901fff245b49cca4df8150a76c9 [2019-12-07 13:37:35,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:37:35,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 13:37:35,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:37:35,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:37:35,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:37:35,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62699726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35, skipping insertion in model container [2019-12-07 13:37:35,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:37:35,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:37:35,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:37:35,626 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:37:35,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:37:35,695 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:37:35,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35 WrapperNode [2019-12-07 13:37:35,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:37:35,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:37:35,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:37:35,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:37:35,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... [2019-12-07 13:37:35,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:37:35,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:37:35,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:37:35,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:37:35,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/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 [2019-12-07 13:37:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 13:37:35,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-12-07 13:37:35,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 13:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 13:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 13:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 13:37:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 13:37:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 13:37:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 13:37:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 13:37:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 13:37:35,782 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 13:37:35,783 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 13:37:35,784 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:37:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 13:37:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 13:37:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:37:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 13:37:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:37:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:37:35,952 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-12-07 13:37:36,081 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:37:36,081 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 13:37:36,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:36 BoogieIcfgContainer [2019-12-07 13:37:36,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:37:36,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:37:36,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:37:36,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:37:36,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:37:35" (1/3) ... [2019-12-07 13:37:36,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc8c55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:37:36, skipping insertion in model container [2019-12-07 13:37:36,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:35" (2/3) ... [2019-12-07 13:37:36,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc8c55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:37:36, skipping insertion in model container [2019-12-07 13:37:36,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:36" (3/3) ... [2019-12-07 13:37:36,087 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-12-07 13:37:36,093 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:37:36,098 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2019-12-07 13:37:36,105 INFO L249 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2019-12-07 13:37:36,118 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:37:36,118 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 13:37:36,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:37:36,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:37:36,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:37:36,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:37:36,118 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:37:36,118 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:37:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 13:37:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:37:36,135 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:36,135 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:36,136 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:36,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:36,139 INFO L82 PathProgramCache]: Analyzing trace with hash 132221508, now seen corresponding path program 1 times [2019-12-07 13:37:36,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:37:36,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538495203] [2019-12-07 13:37:36,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:37:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:36,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538495203] [2019-12-07 13:37:36,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:37:36,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:37:36,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941408921] [2019-12-07 13:37:36,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:37:36,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:37:36,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:37:36,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:37:36,265 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-12-07 13:37:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:37:36,382 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-12-07 13:37:36,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:37:36,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 13:37:36,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:37:36,389 INFO L225 Difference]: With dead ends: 84 [2019-12-07 13:37:36,389 INFO L226 Difference]: Without dead ends: 77 [2019-12-07 13:37:36,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:37:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-12-07 13:37:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-12-07 13:37:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 13:37:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2019-12-07 13:37:36,417 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2019-12-07 13:37:36,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:37:36,417 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2019-12-07 13:37:36,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:37:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2019-12-07 13:37:36,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:37:36,418 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:36,418 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:36,418 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:36,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:36,418 INFO L82 PathProgramCache]: Analyzing trace with hash -196136195, now seen corresponding path program 1 times [2019-12-07 13:37:36,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:37:36,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933482358] [2019-12-07 13:37:36,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:37:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:36,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933482358] [2019-12-07 13:37:36,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:37:36,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:37:36,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90708376] [2019-12-07 13:37:36,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:37:36,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:37:36,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:37:36,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:37:36,469 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand 5 states. [2019-12-07 13:37:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:37:36,594 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-12-07 13:37:36,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:37:36,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 13:37:36,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:37:36,595 INFO L225 Difference]: With dead ends: 84 [2019-12-07 13:37:36,595 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 13:37:36,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:37:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 13:37:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2019-12-07 13:37:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 13:37:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2019-12-07 13:37:36,602 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 11 [2019-12-07 13:37:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:37:36,602 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-12-07 13:37:36,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:37:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2019-12-07 13:37:36,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:37:36,603 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:36,603 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:36,603 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:36,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:36,603 INFO L82 PathProgramCache]: Analyzing trace with hash -196136194, now seen corresponding path program 1 times [2019-12-07 13:37:36,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:37:36,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322805881] [2019-12-07 13:37:36,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:37:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:36,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322805881] [2019-12-07 13:37:36,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:37:36,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:37:36,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080830809] [2019-12-07 13:37:36,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:37:36,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:37:36,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:37:36,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:37:36,653 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand 5 states. [2019-12-07 13:37:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:37:36,790 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-12-07 13:37:36,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:37:36,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 13:37:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:37:36,792 INFO L225 Difference]: With dead ends: 92 [2019-12-07 13:37:36,792 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 13:37:36,792 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:37:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 13:37:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2019-12-07 13:37:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 13:37:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2019-12-07 13:37:36,798 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 11 [2019-12-07 13:37:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:37:36,798 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2019-12-07 13:37:36,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:37:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2019-12-07 13:37:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 13:37:36,799 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:36,799 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:36,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:36,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:36,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1937825696, now seen corresponding path program 1 times [2019-12-07 13:37:36,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:37:36,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079764298] [2019-12-07 13:37:36,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:37:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:37:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:37:36,839 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:37:36,839 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:37:36,846 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 13:37:36,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:37:36 BoogieIcfgContainer [2019-12-07 13:37:36,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:37:36,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:37:36,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:37:36,855 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:37:36,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:36" (3/4) ... [2019-12-07 13:37:36,857 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:37:36,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:37:36,859 INFO L168 Benchmark]: Toolchain (without parser) took 1498.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 940.9 MB in the beginning and 897.3 MB in the end (delta: 43.6 MB). Peak memory consumption was 143.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:36,859 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:37:36,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:36,860 INFO L168 Benchmark]: Boogie Preprocessor took 40.78 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. [2019-12-07 13:37:36,861 INFO L168 Benchmark]: RCFGBuilder took 345.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:36,861 INFO L168 Benchmark]: TraceAbstraction took 772.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 897.3 MB in the end (delta: 120.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:36,861 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory is still 897.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:37:36,863 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.78 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 345.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 772.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 897.3 MB in the end (delta: 120.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory is still 897.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 520]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 520. Possible FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L523] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 100 locations, 30 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 230 SDslu, 58 SDs, 0 SdLazy, 386 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=3, 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, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 13:37:38,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:37:38,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:37:38,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:37:38,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:37:38,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:37:38,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:37:38,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:37:38,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:37:38,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:37:38,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:37:38,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:37:38,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:37:38,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:37:38,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:37:38,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:37:38,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:37:38,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:37:38,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:37:38,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:37:38,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:37:38,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:37:38,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:37:38,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:37:38,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:37:38,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:37:38,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:37:38,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:37:38,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:37:38,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:37:38,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:37:38,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:37:38,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:37:38,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:37:38,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:37:38,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:37:38,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:37:38,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:37:38,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:37:38,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:37:38,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:37:38,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 13:37:38,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:37:38,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:37:38,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:37:38,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:37:38,379 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:37:38,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:37:38,379 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 13:37:38,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:37:38,381 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:37:38,381 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:37:38,381 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:37:38,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:37:38,381 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:37:38,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:37:38,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:37:38,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:37:38,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:37:38,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:37:38,383 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_0289922a-0e04-40b3-aa32-3376227c718e/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 -> bb2202e8adc36cf09139287c61f8b63b857ea10d [2019-12-07 13:37:38,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:37:38,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:37:38,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:37:38,573 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:37:38,573 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:37:38,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/../../sv-benchmarks/c/list-properties/splice-2.i [2019-12-07 13:37:38,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/b35f504bb/af6163e36b2f43a784f8627875c254f4/FLAG44cfb206d [2019-12-07 13:37:38,993 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:37:38,994 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/sv-benchmarks/c/list-properties/splice-2.i [2019-12-07 13:37:39,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/b35f504bb/af6163e36b2f43a784f8627875c254f4/FLAG44cfb206d [2019-12-07 13:37:39,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/data/b35f504bb/af6163e36b2f43a784f8627875c254f4 [2019-12-07 13:37:39,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:37:39,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 13:37:39,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:37:39,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:37:39,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:37:39,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b62f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39, skipping insertion in model container [2019-12-07 13:37:39,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:37:39,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:37:39,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:37:39,305 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:37:39,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:37:39,367 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:37:39,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39 WrapperNode [2019-12-07 13:37:39,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:37:39,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:37:39,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:37:39,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:37:39,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... [2019-12-07 13:37:39,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:37:39,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:37:39,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:37:39,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:37:39,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/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 [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 13:37:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 13:37:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-12-07 13:37:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 13:37:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 13:37:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 13:37:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 13:37:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 13:37:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 13:37:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 13:37:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 13:37:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 13:37:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 13:37:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:37:39,647 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-12-07 13:37:39,856 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:37:39,857 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 13:37:39,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:39 BoogieIcfgContainer [2019-12-07 13:37:39,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:37:39,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:37:39,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:37:39,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:37:39,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:37:39" (1/3) ... [2019-12-07 13:37:39,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc6b22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:37:39, skipping insertion in model container [2019-12-07 13:37:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:37:39" (2/3) ... [2019-12-07 13:37:39,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc6b22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:37:39, skipping insertion in model container [2019-12-07 13:37:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:39" (3/3) ... [2019-12-07 13:37:39,864 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-12-07 13:37:39,873 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:37:39,879 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2019-12-07 13:37:39,890 INFO L249 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2019-12-07 13:37:39,906 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:37:39,906 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 13:37:39,906 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:37:39,907 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:37:39,907 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:37:39,907 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:37:39,907 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:37:39,907 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:37:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-12-07 13:37:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:37:39,926 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:39,927 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:39,927 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:39,931 INFO L82 PathProgramCache]: Analyzing trace with hash 958148326, now seen corresponding path program 1 times [2019-12-07 13:37:39,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:37:39,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291318640] [2019-12-07 13:37:39,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 13:37:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:40,028 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:37:40,032 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:37:40,079 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 [2019-12-07 13:37:40,079 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:37:40,085 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:37:40,085 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:37:40,085 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 13:37:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:40,098 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:37:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:40,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291318640] [2019-12-07 13:37:40,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:37:40,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:37:40,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210337145] [2019-12-07 13:37:40,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:37:40,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:37:40,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:37:40,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:37:40,122 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2019-12-07 13:37:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:37:40,376 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2019-12-07 13:37:40,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:37:40,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 13:37:40,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:37:40,383 INFO L225 Difference]: With dead ends: 90 [2019-12-07 13:37:40,384 INFO L226 Difference]: Without dead ends: 82 [2019-12-07 13:37:40,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:37:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-07 13:37:40,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2019-12-07 13:37:40,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 13:37:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2019-12-07 13:37:40,415 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 10 [2019-12-07 13:37:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:37:40,416 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2019-12-07 13:37:40,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:37:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2019-12-07 13:37:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:37:40,416 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:40,416 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:40,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:37:40,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:40,620 INFO L82 PathProgramCache]: Analyzing trace with hash 958148327, now seen corresponding path program 1 times [2019-12-07 13:37:40,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:37:40,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855985905] [2019-12-07 13:37:40,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 13:37:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:37:40,757 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:37:40,758 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:37:40,767 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 [2019-12-07 13:37:40,767 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:37:40,772 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:37:40,772 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:37:40,773 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 13:37:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:40,790 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:37:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:37:40,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855985905] [2019-12-07 13:37:40,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:37:40,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 13:37:40,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457599520] [2019-12-07 13:37:40,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:37:40,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:37:40,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:37:40,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:37:40,860 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand 6 states. [2019-12-07 13:37:41,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:37:41,277 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2019-12-07 13:37:41,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:37:41,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 13:37:41,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:37:41,279 INFO L225 Difference]: With dead ends: 92 [2019-12-07 13:37:41,279 INFO L226 Difference]: Without dead ends: 92 [2019-12-07 13:37:41,280 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:37:41,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-12-07 13:37:41,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2019-12-07 13:37:41,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 13:37:41,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2019-12-07 13:37:41,286 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 10 [2019-12-07 13:37:41,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:37:41,287 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2019-12-07 13:37:41,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:37:41,287 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2019-12-07 13:37:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 13:37:41,287 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:37:41,287 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:37:41,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:37:41,489 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-12-07 13:37:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:37:41,490 INFO L82 PathProgramCache]: Analyzing trace with hash -155811508, now seen corresponding path program 1 times [2019-12-07 13:37:41,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:37:41,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193785645] [2019-12-07 13:37:41,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0289922a-0e04-40b3-aa32-3376227c718e/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 13:37:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:37:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:37:41,606 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 13:37:41,607 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:37:41,807 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:37:41,830 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 13:37:41,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:37:41 BoogieIcfgContainer [2019-12-07 13:37:41,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:37:41,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:37:41,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:37:41,855 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:37:41,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:37:39" (3/4) ... [2019-12-07 13:37:41,859 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:37:41,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:37:41,862 INFO L168 Benchmark]: Toolchain (without parser) took 2840.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.0 MB in the beginning and 867.5 MB in the end (delta: 79.5 MB). Peak memory consumption was 211.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:41,862 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:37:41,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:41,863 INFO L168 Benchmark]: Boogie Preprocessor took 46.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:41,863 INFO L168 Benchmark]: RCFGBuilder took 443.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:41,864 INFO L168 Benchmark]: TraceAbstraction took 1995.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 867.5 MB in the end (delta: 174.2 MB). Peak memory consumption was 174.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:37:41,864 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 867.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:37:41,866 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 443.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1995.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 867.5 MB in the end (delta: 174.2 MB). Peak memory consumption was 174.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 867.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 520]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 520. Possible FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L523] COND FALSE !(a == 0) VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L544] EXPR a->h VAL [a={1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 105 locations, 30 error locations. Result: UNSAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 336 SDslu, 76 SDs, 0 SdLazy, 191 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, 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, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1368 SizeOfPredicates, 8 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...