./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/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 cf7af2f20e563d03f4a81a8dac054ded849cb34c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/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 cf7af2f20e563d03f4a81a8dac054ded849cb34c ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:51,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:51,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:51,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:51,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:51,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:51,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:51,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:51,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:51,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:51,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:51,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:51,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:51,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:51,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:51,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:51,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:51,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:51,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:51,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:51,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:51,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:51,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:51,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:51,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:51,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:51,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:51,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:51,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:51,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:51,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:51,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:51,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:51,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:51,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:51,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:51,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:51,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:51,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:51,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:51,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:51,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:55:51,380 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:51,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:51,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:51,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:51,382 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:51,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:51,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:51,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:51,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:51,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:51,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:51,383 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:55:51,383 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:55:51,384 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:55:51,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:51,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:51,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:51,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:51,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:51,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:51,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:51,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:51,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:51,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:51,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:51,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:51,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/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 -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-10-22 08:55:51,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:51,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:51,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:51,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:51,435 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:51,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 08:55:51,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/cf6672143/a237f23f24364aa7b93b0d68faec1a4b/FLAG04291ca96 [2019-10-22 08:55:51,926 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:51,927 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 08:55:51,940 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/cf6672143/a237f23f24364aa7b93b0d68faec1a4b/FLAG04291ca96 [2019-10-22 08:55:51,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/cf6672143/a237f23f24364aa7b93b0d68faec1a4b [2019-10-22 08:55:51,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:51,958 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:55:51,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:51,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:51,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:51,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:51" (1/1) ... [2019-10-22 08:55:51,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d1e4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:51, skipping insertion in model container [2019-10-22 08:55:51,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:51" (1/1) ... [2019-10-22 08:55:51,976 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:52,018 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:52,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:52,400 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:52,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:52,510 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:52,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52 WrapperNode [2019-10-22 08:55:52,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:52,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:52,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:52,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:52,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... [2019-10-22 08:55:52,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:52,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:52,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:52,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:52,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:55:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:55:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:55:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 08:55:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2019-10-22 08:55:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:55:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:55:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:55:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:55:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:55:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:55:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:55:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:55:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:55:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:55:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:55:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:55:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:55:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:55:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:55:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:55:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:55:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:55:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:55:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:55:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:55:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:55:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:55:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:55:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:55:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:55:52,653 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:55:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:55:52,654 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:55:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:55:52,656 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:55:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:55:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:55:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 08:55:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2019-10-22 08:55:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:55:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:55:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:55:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:55:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:55:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:53,101 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 08:55:53,262 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:53,262 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-22 08:55:53,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:53 BoogieIcfgContainer [2019-10-22 08:55:53,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:53,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:53,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:53,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:53,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:51" (1/3) ... [2019-10-22 08:55:53,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d46cbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:53, skipping insertion in model container [2019-10-22 08:55:53,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:52" (2/3) ... [2019-10-22 08:55:53,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d46cbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:53, skipping insertion in model container [2019-10-22 08:55:53,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:53" (3/3) ... [2019-10-22 08:55:53,273 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2019-10-22 08:55:53,284 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:53,291 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-10-22 08:55:53,303 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-10-22 08:55:53,325 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:53,325 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:55:53,325 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:53,326 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:53,326 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:53,326 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:53,326 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:53,326 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:53,346 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-10-22 08:55:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:55:53,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:53,356 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:53,359 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-10-22 08:55:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:53,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1296135611, now seen corresponding path program 1 times [2019-10-22 08:55:53,374 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:53,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570945078] [2019-10-22 08:55:53,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:53,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:53,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:53,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:55:53,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570945078] [2019-10-22 08:55:53,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933630841] [2019-10-22 08:55:53,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:53,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-22 08:55:54,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:54,110 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-22 08:55:54,111 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:55:54,114 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:54,115 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:55:54,115 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-10-22 08:55:54,197 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:54,198 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-10-22 08:55:54,199 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:55:54,220 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-10-22 08:55:54,224 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:55:54,224 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-10-22 08:55:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:54,251 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:55:54,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2019-10-22 08:55:54,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98726587] [2019-10-22 08:55:54,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:55:54,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:54,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:55:54,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:55:54,274 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 12 states. [2019-10-22 08:55:54,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:54,631 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-10-22 08:55:54,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:55:54,633 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2019-10-22 08:55:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:54,643 INFO L225 Difference]: With dead ends: 37 [2019-10-22 08:55:54,644 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:55:54,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:55:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:55:54,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 08:55:54,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:55:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-10-22 08:55:54,694 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 19 [2019-10-22 08:55:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:54,696 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-10-22 08:55:54,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:55:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-10-22 08:55:54,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:55:54,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:54,698 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:54,899 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:54,899 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-10-22 08:55:54,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:54,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1296135612, now seen corresponding path program 1 times [2019-10-22 08:55:54,900 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:54,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507521569] [2019-10-22 08:55:54,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:54,900 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:54,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:55:55,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507521569] [2019-10-22 08:55:55,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551984915] [2019-10-22 08:55:55,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-22 08:55:55,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:55,251 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-22 08:55:55,251 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:55:55,262 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:55,265 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-22 08:55:55,265 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:55:55,272 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:55,272 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:55:55,273 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-10-22 08:55:55,332 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:55,332 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-22 08:55:55,333 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:55:55,342 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:55,348 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-10-22 08:55:55,348 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:55:55,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:55:55,357 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:55:55,357 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:18 [2019-10-22 08:55:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:55,384 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:55:55,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2019-10-22 08:55:55,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466797132] [2019-10-22 08:55:55,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:55:55,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:55:55,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:55:55,387 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 12 states. [2019-10-22 08:55:55,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:55,653 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-10-22 08:55:55,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:55:55,653 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2019-10-22 08:55:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:55,654 INFO L225 Difference]: With dead ends: 27 [2019-10-22 08:55:55,654 INFO L226 Difference]: Without dead ends: 27 [2019-10-22 08:55:55,655 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:55:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-22 08:55:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-22 08:55:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 08:55:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-10-22 08:55:55,658 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 19 [2019-10-22 08:55:55,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:55,659 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-10-22 08:55:55,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:55:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-10-22 08:55:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:55:55,660 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:55,660 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:55,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:55,861 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-10-22 08:55:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:55,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1419991331, now seen corresponding path program 1 times [2019-10-22 08:55:55,861 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:55,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540332537] [2019-10-22 08:55:55,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:55,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:55,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:55:55,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540332537] [2019-10-22 08:55:55,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:55,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:55:55,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862553826] [2019-10-22 08:55:55,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:55:55,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:55,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:55:55,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:55,982 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2019-10-22 08:55:56,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:56,134 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-10-22 08:55:56,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:55:56,134 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-10-22 08:55:56,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:56,135 INFO L225 Difference]: With dead ends: 26 [2019-10-22 08:55:56,135 INFO L226 Difference]: Without dead ends: 26 [2019-10-22 08:55:56,135 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:55:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-22 08:55:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-22 08:55:56,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 08:55:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-10-22 08:55:56,138 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2019-10-22 08:55:56,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:56,139 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-10-22 08:55:56,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:55:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-10-22 08:55:56,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:55:56,139 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:56,139 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:56,139 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-10-22 08:55:56,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:56,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1419991332, now seen corresponding path program 1 times [2019-10-22 08:55:56,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:56,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583888139] [2019-10-22 08:55:56,140 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,140 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:55:56,264 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583888139] [2019-10-22 08:55:56,264 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:56,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:55:56,265 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334110466] [2019-10-22 08:55:56,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:55:56,265 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:56,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:55:56,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:56,265 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2019-10-22 08:55:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:56,377 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-10-22 08:55:56,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:55:56,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-10-22 08:55:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:56,378 INFO L225 Difference]: With dead ends: 25 [2019-10-22 08:55:56,378 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 08:55:56,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:55:56,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 08:55:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 08:55:56,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 08:55:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-10-22 08:55:56,381 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2019-10-22 08:55:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:56,381 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-10-22 08:55:56,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:55:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-10-22 08:55:56,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:55:56,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:56,382 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:56,383 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-10-22 08:55:56,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:56,383 INFO L82 PathProgramCache]: Analyzing trace with hash 859638790, now seen corresponding path program 1 times [2019-10-22 08:55:56,383 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:56,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663329734] [2019-10-22 08:55:56,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:55:56,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663329734] [2019-10-22 08:55:56,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091600099] [2019-10-22 08:55:56,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:56,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:55:56,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:55:56,542 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:55:56,543 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2019-10-22 08:55:56,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873004157] [2019-10-22 08:55:56,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:55:56,543 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:56,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:55:56,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:55:56,544 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 8 states. [2019-10-22 08:55:56,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:56,622 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-10-22 08:55:56,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:56,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-10-22 08:55:56,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:56,623 INFO L225 Difference]: With dead ends: 24 [2019-10-22 08:55:56,623 INFO L226 Difference]: Without dead ends: 24 [2019-10-22 08:55:56,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:55:56,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-22 08:55:56,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-22 08:55:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-22 08:55:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-10-22 08:55:56,626 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 26 [2019-10-22 08:55:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:56,627 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-10-22 08:55:56,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:55:56,627 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-10-22 08:55:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 08:55:56,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:56,628 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:56,828 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:56,829 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-10-22 08:55:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:56,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1479158633, now seen corresponding path program 1 times [2019-10-22 08:55:56,829 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:56,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600740967] [2019-10-22 08:55:56,829 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:56,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:56,873 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:56,877 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:56,888 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 08:55:56,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:56 BoogieIcfgContainer [2019-10-22 08:55:56,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:56,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:56,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:56,906 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:56,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:53" (3/4) ... [2019-10-22 08:55:56,910 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:55:56,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:56,911 INFO L168 Benchmark]: Toolchain (without parser) took 4953.36 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 252.2 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:56,911 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:56,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -229.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:56,912 INFO L168 Benchmark]: Boogie Preprocessor took 50.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:56,913 INFO L168 Benchmark]: RCFGBuilder took 701.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:56,913 INFO L168 Benchmark]: TraceAbstraction took 3641.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:56,913 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:56,916 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 551.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -229.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 701.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3641.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. 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: 568]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 568. Possible FailurePath: [L569] CALL, EXPR alloc_node() [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={-1:0}, temp={-1:0}] [L563] COND FALSE !(((void *)0) == temp) VAL [malloc(sizeof(struct node))={-1:0}, temp={-1:0}] [L566] return temp; VAL [\result={-1:0}, malloc(sizeof(struct node))={-1:0}, temp={-1:0}] [L569] RET, EXPR alloc_node() VAL [alloc_node()={-1:0}] [L569] struct node* s = alloc_node(); [L570] CALL, EXPR alloc_node() [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={1:0}, temp={1:0}] [L563] COND FALSE !(((void *)0) == temp) VAL [malloc(sizeof(struct node))={1:0}, temp={1:0}] [L566] return temp; VAL [\result={1:0}, malloc(sizeof(struct node))={1:0}, temp={1:0}] [L570] RET, EXPR alloc_node() VAL [alloc_node()={1:0}, s={-1:0}] [L570] s->next = alloc_node() VAL [alloc_node()={1:0}, s={-1:0}] [L571] EXPR s->next VAL [s={-1:0}, s->next={1:0}] [L571] *s = *(s->next) VAL [*s = *(s->next)={7:5}, s={-1:0}, s->next={1:0}] [L572] free(s) VAL [s={-1:0}] [L572] free(s) VAL [s={-1:0}] [L572] free(s) [L573] return 0; VAL [\result=0, s={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 12 error locations. Result: UNSAFE, OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 87 SDslu, 248 SDs, 0 SdLazy, 575 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 164 ConstructedInterpolants, 10 QuantifiedInterpolants, 20613 SizeOfPredicates, 10 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 16/40 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 0.1.24-cad4683 [2019-10-22 08:55:58,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:58,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:58,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:58,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:58,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:58,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:58,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:58,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:58,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:58,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:58,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:58,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:58,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:58,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:58,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:58,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:58,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:58,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:58,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:58,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:58,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:58,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:58,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:58,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:58,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:58,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:58,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:58,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:58,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:58,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:58,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:58,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:58,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:58,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:58,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:58,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:58,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:58,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:58,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:58,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:58,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 08:55:58,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:58,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:58,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:58,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:58,830 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:58,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:58,830 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:55:58,831 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:55:58,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:58,832 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:55:58,832 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:55:58,832 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:58,832 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:58,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:58,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:58,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:58,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:58,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:58,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:58,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:58,833 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:55:58,837 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:55:58,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:55:58,837 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/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/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 -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-10-22 08:55:58,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:58,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:58,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:58,889 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:58,892 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:58,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 08:55:58,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/854b83378/0f5dbc1201774987b617e88886b567e0/FLAG7f5ff1823 [2019-10-22 08:55:59,369 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:59,369 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-10-22 08:55:59,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/854b83378/0f5dbc1201774987b617e88886b567e0/FLAG7f5ff1823 [2019-10-22 08:55:59,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/data/854b83378/0f5dbc1201774987b617e88886b567e0 [2019-10-22 08:55:59,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:59,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:55:59,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:59,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:59,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:59,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363bcde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59, skipping insertion in model container [2019-10-22 08:55:59,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,418 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:59,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:59,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:59,736 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:59,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:59,872 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:59,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59 WrapperNode [2019-10-22 08:55:59,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:59,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:59,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:59,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:59,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... [2019-10-22 08:55:59,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:59,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:59,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:59,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:59,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:55:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:55:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:55:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 08:55:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2019-10-22 08:55:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:55:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:55:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:55:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:55:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:55:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:55:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:55:59,989 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:55:59,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:55:59,991 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:55:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:55:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:55:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:55:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:55:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:55:59,992 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:55:59,993 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:55:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:55:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:55:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:55:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:55:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:55:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:55:59,996 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:55:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:55:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:55:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:56:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:56:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:00,230 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 08:56:00,403 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:00,403 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-22 08:56:00,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:00 BoogieIcfgContainer [2019-10-22 08:56:00,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:00,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:00,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:00,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:00,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:59" (1/3) ... [2019-10-22 08:56:00,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eeae6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:00, skipping insertion in model container [2019-10-22 08:56:00,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:59" (2/3) ... [2019-10-22 08:56:00,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eeae6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:00, skipping insertion in model container [2019-10-22 08:56:00,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:00" (3/3) ... [2019-10-22 08:56:00,411 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2019-10-22 08:56:00,419 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:00,425 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-10-22 08:56:00,433 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-10-22 08:56:00,447 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:00,447 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:56:00,448 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:00,448 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:00,448 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:00,448 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:00,448 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:00,448 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:00,461 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-10-22 08:56:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:56:00,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:00,470 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:00,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION]=== [2019-10-22 08:56:00,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:00,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1296135611, now seen corresponding path program 1 times [2019-10-22 08:56:00,486 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:00,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [675676707] [2019-10-22 08:56:00,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e99d158-0fab-4acf-9f6c-68750ddb4d76/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:56:00,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:56:00,713 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:56:00,719 INFO L168 Benchmark]: Toolchain (without parser) took 1318.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,719 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:00,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,721 INFO L168 Benchmark]: Boogie Preprocessor took 58.55 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,724 INFO L168 Benchmark]: RCFGBuilder took 471.61 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,725 INFO L168 Benchmark]: TraceAbstraction took 310.08 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:00,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 472.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.55 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 471.61 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: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 310.08 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort C_DOUBLE not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...