./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27142e71f3089c5c3b5bf4f358882e993f701ffc .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27142e71f3089c5c3b5bf4f358882e993f701ffc ................................................................................................................................................................................................................................................................................................................................................................... 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 08:58:15,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:15,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:15,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:15,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:15,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:15,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:15,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:15,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:15,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:15,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:15,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:15,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:15,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:15,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:15,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:15,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:15,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:15,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:15,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:15,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:15,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:15,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:15,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:15,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:15,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:15,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:15,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:15,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:15,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:15,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:15,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:15,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:15,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:15,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:15,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:15,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:15,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:15,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:15,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:15,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:15,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-10-22 08:58:15,905 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:15,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:15,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:15,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:15,907 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:15,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:15,907 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:15,907 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:15,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:15,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:15,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:15,908 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:15,908 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:15,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:15,908 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:15,909 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:15,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:15,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:15,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:15,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:15,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:15,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:15,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:15,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:15,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:15,911 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_43cd0b68-e881-4117-9a85-866902326285/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-memcleanup) ) 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 -> 27142e71f3089c5c3b5bf4f358882e993f701ffc [2019-10-22 08:58:15,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:15,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:15,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:15,948 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:15,949 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:15,949 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-10-22 08:58:16,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/0ea860b22/81d201845a40456487d5ed2def940f8f/FLAG6c6cfbb76 [2019-10-22 08:58:16,474 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:16,475 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-10-22 08:58:16,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/0ea860b22/81d201845a40456487d5ed2def940f8f/FLAG6c6cfbb76 [2019-10-22 08:58:16,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/0ea860b22/81d201845a40456487d5ed2def940f8f [2019-10-22 08:58:16,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:16,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:16,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:16,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:16,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:16,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:16" (1/1) ... [2019-10-22 08:58:16,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea20df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:16, skipping insertion in model container [2019-10-22 08:58:16,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:16" (1/1) ... [2019-10-22 08:58:16,805 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:16,850 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:17,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:17,235 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:17,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:17,332 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:17,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17 WrapperNode [2019-10-22 08:58:17,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:17,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:17,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:17,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:17,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:17,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:17,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:17,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:17,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/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 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2019-10-22 08:58:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-22 08:58:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-22 08:58:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2019-10-22 08:58:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:17,463 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:17,464 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:17,467 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-22 08:58:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2019-10-22 08:58:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:17,756 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 08:58:17,974 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:17,975 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:58:17,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:17 BoogieIcfgContainer [2019-10-22 08:58:17,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:17,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:17,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:17,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:17,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:16" (1/3) ... [2019-10-22 08:58:17,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e20dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:17, skipping insertion in model container [2019-10-22 08:58:17,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (2/3) ... [2019-10-22 08:58:17,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e20dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:17, skipping insertion in model container [2019-10-22 08:58:17,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:17" (3/3) ... [2019-10-22 08:58:17,984 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2019-10-22 08:58:17,995 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:18,001 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2019-10-22 08:58:18,012 INFO L249 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2019-10-22 08:58:18,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:18,030 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:18,030 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:18,032 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:18,033 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:18,033 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:18,033 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:18,033 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:18,051 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2019-10-22 08:58:18,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:18,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:18,063 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:18,065 INFO L410 AbstractCegarLoop]: === Iteration 1 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:18,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:18,072 INFO L82 PathProgramCache]: Analyzing trace with hash 60271053, now seen corresponding path program 1 times [2019-10-22 08:58:18,078 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:18,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084729028] [2019-10-22 08:58:18,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,079 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:18,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084729028] [2019-10-22 08:58:18,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:18,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:18,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062297150] [2019-10-22 08:58:18,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:18,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:18,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:18,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:18,259 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 3 states. [2019-10-22 08:58:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:18,455 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2019-10-22 08:58:18,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:18,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-22 08:58:18,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:18,466 INFO L225 Difference]: With dead ends: 123 [2019-10-22 08:58:18,466 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 08:58:18,468 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 08:58:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 97. [2019-10-22 08:58:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-10-22 08:58:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2019-10-22 08:58:18,509 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 18 [2019-10-22 08:58:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:18,509 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2019-10-22 08:58:18,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2019-10-22 08:58:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 08:58:18,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:18,511 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:18,511 INFO L410 AbstractCegarLoop]: === Iteration 2 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:18,511 INFO L82 PathProgramCache]: Analyzing trace with hash -773774234, now seen corresponding path program 1 times [2019-10-22 08:58:18,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:18,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138513427] [2019-10-22 08:58:18,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:18,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138513427] [2019-10-22 08:58:18,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:18,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:18,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527989928] [2019-10-22 08:58:18,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:18,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:18,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:18,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:18,588 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 4 states. [2019-10-22 08:58:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:18,802 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2019-10-22 08:58:18,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:18,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 08:58:18,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:18,803 INFO L225 Difference]: With dead ends: 114 [2019-10-22 08:58:18,804 INFO L226 Difference]: Without dead ends: 114 [2019-10-22 08:58:18,804 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-22 08:58:18,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2019-10-22 08:58:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-22 08:58:18,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2019-10-22 08:58:18,812 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 20 [2019-10-22 08:58:18,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:18,814 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2019-10-22 08:58:18,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:18,814 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2019-10-22 08:58:18,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 08:58:18,818 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:18,819 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:18,819 INFO L410 AbstractCegarLoop]: === Iteration 3 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:18,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:18,819 INFO L82 PathProgramCache]: Analyzing trace with hash -773774233, now seen corresponding path program 1 times [2019-10-22 08:58:18,819 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:18,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212351987] [2019-10-22 08:58:18,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:18,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212351987] [2019-10-22 08:58:18,952 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:18,952 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:18,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250441365] [2019-10-22 08:58:18,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:18,953 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:18,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:18,954 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 4 states. [2019-10-22 08:58:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:19,194 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2019-10-22 08:58:19,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:19,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-22 08:58:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:19,197 INFO L225 Difference]: With dead ends: 113 [2019-10-22 08:58:19,197 INFO L226 Difference]: Without dead ends: 113 [2019-10-22 08:58:19,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:19,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-22 08:58:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2019-10-22 08:58:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-22 08:58:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2019-10-22 08:58:19,218 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 20 [2019-10-22 08:58:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:19,219 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2019-10-22 08:58:19,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2019-10-22 08:58:19,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:58:19,220 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,220 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,221 INFO L410 AbstractCegarLoop]: === Iteration 4 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:19,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1622943963, now seen corresponding path program 1 times [2019-10-22 08:58:19,221 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536066782] [2019-10-22 08:58:19,222 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,222 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:19,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536066782] [2019-10-22 08:58:19,409 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:19,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:19,409 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316267169] [2019-10-22 08:58:19,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:19,410 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:19,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:19,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:19,410 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand 6 states. [2019-10-22 08:58:19,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:19,763 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2019-10-22 08:58:19,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:19,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-10-22 08:58:19,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:19,765 INFO L225 Difference]: With dead ends: 124 [2019-10-22 08:58:19,765 INFO L226 Difference]: Without dead ends: 124 [2019-10-22 08:58:19,765 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:19,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-22 08:58:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 106. [2019-10-22 08:58:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-10-22 08:58:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2019-10-22 08:58:19,773 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 35 [2019-10-22 08:58:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:19,773 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2019-10-22 08:58:19,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2019-10-22 08:58:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:58:19,774 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,775 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,775 INFO L410 AbstractCegarLoop]: === Iteration 5 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1622943962, now seen corresponding path program 1 times [2019-10-22 08:58:19,775 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000712328] [2019-10-22 08:58:19,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:19,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000712328] [2019-10-22 08:58:19,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982454086] [2019-10-22 08:58:19,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/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 08:58:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,104 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:58:20,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 15 [2019-10-22 08:58:20,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531219814] [2019-10-22 08:58:20,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:20,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:20,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:20,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:58:20,106 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 9 states. [2019-10-22 08:58:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:20,180 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2019-10-22 08:58:20,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:20,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2019-10-22 08:58:20,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:20,181 INFO L225 Difference]: With dead ends: 99 [2019-10-22 08:58:20,181 INFO L226 Difference]: Without dead ends: 96 [2019-10-22 08:58:20,182 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-10-22 08:58:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-22 08:58:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-10-22 08:58:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-10-22 08:58:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2019-10-22 08:58:20,187 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 35 [2019-10-22 08:58:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:20,188 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2019-10-22 08:58:20,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2019-10-22 08:58:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 08:58:20,189 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:20,189 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:20,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:20,390 INFO L410 AbstractCegarLoop]: === Iteration 6 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:20,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,390 INFO L82 PathProgramCache]: Analyzing trace with hash -704802399, now seen corresponding path program 1 times [2019-10-22 08:58:20,390 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704357692] [2019-10-22 08:58:20,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:20,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704357692] [2019-10-22 08:58:20,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164234168] [2019-10-22 08:58:20,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/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 08:58:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,949 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:20,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 21 [2019-10-22 08:58:20,949 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775619437] [2019-10-22 08:58:20,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-22 08:58:20,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:20,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-22 08:58:20,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-22 08:58:20,951 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 21 states. [2019-10-22 08:58:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:22,163 INFO L93 Difference]: Finished difference Result 139 states and 160 transitions. [2019-10-22 08:58:22,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-22 08:58:22,164 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 40 [2019-10-22 08:58:22,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:22,165 INFO L225 Difference]: With dead ends: 139 [2019-10-22 08:58:22,165 INFO L226 Difference]: Without dead ends: 136 [2019-10-22 08:58:22,165 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=1113, Unknown=0, NotChecked=0, Total=1332 [2019-10-22 08:58:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-22 08:58:22,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 108. [2019-10-22 08:58:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-22 08:58:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2019-10-22 08:58:22,172 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 40 [2019-10-22 08:58:22,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:22,173 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2019-10-22 08:58:22,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-22 08:58:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2019-10-22 08:58:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:58:22,174 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:22,174 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:22,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:22,376 INFO L410 AbstractCegarLoop]: === Iteration 7 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:22,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:22,376 INFO L82 PathProgramCache]: Analyzing trace with hash 601949349, now seen corresponding path program 2 times [2019-10-22 08:58:22,376 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:22,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838517742] [2019-10-22 08:58:22,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-22 08:58:22,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838517742] [2019-10-22 08:58:22,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:22,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 08:58:22,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7492739] [2019-10-22 08:58:22,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:22,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:22,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:22,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:22,547 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand 9 states. [2019-10-22 08:58:22,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:22,916 INFO L93 Difference]: Finished difference Result 153 states and 176 transitions. [2019-10-22 08:58:22,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:22,917 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2019-10-22 08:58:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:22,918 INFO L225 Difference]: With dead ends: 153 [2019-10-22 08:58:22,918 INFO L226 Difference]: Without dead ends: 153 [2019-10-22 08:58:22,919 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:58:22,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-22 08:58:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 118. [2019-10-22 08:58:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-10-22 08:58:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2019-10-22 08:58:22,925 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 45 [2019-10-22 08:58:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:22,926 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2019-10-22 08:58:22,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2019-10-22 08:58:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:58:22,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:22,927 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:22,927 INFO L410 AbstractCegarLoop]: === Iteration 8 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:22,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:22,928 INFO L82 PathProgramCache]: Analyzing trace with hash 601951271, now seen corresponding path program 1 times [2019-10-22 08:58:22,928 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:22,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510314122] [2019-10-22 08:58:22,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:22,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:23,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510314122] [2019-10-22 08:58:23,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772196636] [2019-10-22 08:58:23,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/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 08:58:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:23,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:23,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:23,235 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 08:58:23,236 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,244 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:23,244 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,245 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 08:58:23,255 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-10-22 08:58:23,256 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,260 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:23,261 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,261 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-10-22 08:58:23,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:58:23,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:58:23,354 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-10-22 08:58:23,354 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-10-22 08:58:23,355 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:23,362 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:23,363 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:23,363 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:25, output treesize:26 [2019-10-22 08:58:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:23,460 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:23,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2019-10-22 08:58:23,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360031674] [2019-10-22 08:58:23,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-22 08:58:23,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:23,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-22 08:58:23,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:23,461 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 13 states. [2019-10-22 08:58:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:24,293 INFO L93 Difference]: Finished difference Result 231 states and 264 transitions. [2019-10-22 08:58:24,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:58:24,294 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2019-10-22 08:58:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:24,296 INFO L225 Difference]: With dead ends: 231 [2019-10-22 08:58:24,296 INFO L226 Difference]: Without dead ends: 231 [2019-10-22 08:58:24,296 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:58:24,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2019-10-22 08:58:24,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 176. [2019-10-22 08:58:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-10-22 08:58:24,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 216 transitions. [2019-10-22 08:58:24,315 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 216 transitions. Word has length 45 [2019-10-22 08:58:24,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:24,315 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 216 transitions. [2019-10-22 08:58:24,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-22 08:58:24,316 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 216 transitions. [2019-10-22 08:58:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:58:24,316 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:24,317 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:24,517 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:24,517 INFO L410 AbstractCegarLoop]: === Iteration 9 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:24,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:24,517 INFO L82 PathProgramCache]: Analyzing trace with hash 601951272, now seen corresponding path program 1 times [2019-10-22 08:58:24,518 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:24,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948846754] [2019-10-22 08:58:24,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:24,518 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:24,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:24,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948846754] [2019-10-22 08:58:24,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513439417] [2019-10-22 08:58:24,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:24,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 08:58:24,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:24,816 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 08:58:24,816 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:24,822 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:24,823 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:24,823 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-22 08:58:24,831 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-10-22 08:58:24,831 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:24,836 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:24,836 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:24,837 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-10-22 08:58:24,893 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:58:24,894 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:58:24,905 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-10-22 08:58:24,905 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-10-22 08:58:24,906 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:24,917 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:24,918 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:24,918 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:29 [2019-10-22 08:58:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:25,008 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:25,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2019-10-22 08:58:25,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501728342] [2019-10-22 08:58:25,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-22 08:58:25,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:25,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-22 08:58:25,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:25,010 INFO L87 Difference]: Start difference. First operand 176 states and 216 transitions. Second operand 13 states. [2019-10-22 08:58:25,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:25,913 INFO L93 Difference]: Finished difference Result 243 states and 275 transitions. [2019-10-22 08:58:25,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:58:25,914 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2019-10-22 08:58:25,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:25,915 INFO L225 Difference]: With dead ends: 243 [2019-10-22 08:58:25,916 INFO L226 Difference]: Without dead ends: 243 [2019-10-22 08:58:25,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:58:25,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-10-22 08:58:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 187. [2019-10-22 08:58:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-10-22 08:58:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 229 transitions. [2019-10-22 08:58:25,925 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 229 transitions. Word has length 45 [2019-10-22 08:58:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:25,925 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 229 transitions. [2019-10-22 08:58:25,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-22 08:58:25,925 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 229 transitions. [2019-10-22 08:58:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 08:58:25,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:25,927 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:26,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:26,128 INFO L410 AbstractCegarLoop]: === Iteration 10 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:26,128 INFO L82 PathProgramCache]: Analyzing trace with hash -151851820, now seen corresponding path program 1 times [2019-10-22 08:58:26,128 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:26,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647848024] [2019-10-22 08:58:26,128 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:26,128 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:26,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 08:58:26,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647848024] [2019-10-22 08:58:26,269 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:26,269 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-22 08:58:26,270 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599664487] [2019-10-22 08:58:26,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:58:26,270 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:26,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:58:26,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:26,271 INFO L87 Difference]: Start difference. First operand 187 states and 229 transitions. Second operand 12 states. [2019-10-22 08:58:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:26,757 INFO L93 Difference]: Finished difference Result 256 states and 320 transitions. [2019-10-22 08:58:26,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:58:26,757 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2019-10-22 08:58:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:26,759 INFO L225 Difference]: With dead ends: 256 [2019-10-22 08:58:26,759 INFO L226 Difference]: Without dead ends: 256 [2019-10-22 08:58:26,759 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-22 08:58:26,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-10-22 08:58:26,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 217. [2019-10-22 08:58:26,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-22 08:58:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2019-10-22 08:58:26,769 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 49 [2019-10-22 08:58:26,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:26,769 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2019-10-22 08:58:26,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:58:26,769 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2019-10-22 08:58:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 08:58:26,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:26,771 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:26,771 INFO L410 AbstractCegarLoop]: === Iteration 11 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:26,772 INFO L82 PathProgramCache]: Analyzing trace with hash -151851819, now seen corresponding path program 1 times [2019-10-22 08:58:26,772 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:26,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183775921] [2019-10-22 08:58:26,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:26,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:26,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:26,913 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 08:58:26,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183775921] [2019-10-22 08:58:26,914 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:26,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-22 08:58:26,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385066264] [2019-10-22 08:58:26,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:58:26,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:26,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:58:26,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:26,915 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand 12 states. [2019-10-22 08:58:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:27,425 INFO L93 Difference]: Finished difference Result 257 states and 320 transitions. [2019-10-22 08:58:27,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:58:27,426 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2019-10-22 08:58:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:27,427 INFO L225 Difference]: With dead ends: 257 [2019-10-22 08:58:27,427 INFO L226 Difference]: Without dead ends: 257 [2019-10-22 08:58:27,427 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:58:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2019-10-22 08:58:27,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 217. [2019-10-22 08:58:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-22 08:58:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 273 transitions. [2019-10-22 08:58:27,436 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 273 transitions. Word has length 49 [2019-10-22 08:58:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:27,436 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 273 transitions. [2019-10-22 08:58:27,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:58:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 273 transitions. [2019-10-22 08:58:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 08:58:27,437 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:27,437 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:27,437 INFO L410 AbstractCegarLoop]: === Iteration 12 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:27,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1342233507, now seen corresponding path program 2 times [2019-10-22 08:58:27,438 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:27,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789270553] [2019-10-22 08:58:27,438 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,439 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:27,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:58:27,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789270553] [2019-10-22 08:58:27,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013985459] [2019-10-22 08:58:27,615 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:27,721 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 08:58:27,721 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:27,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 08:58:27,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:27,777 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:27,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 17 [2019-10-22 08:58:27,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605032405] [2019-10-22 08:58:27,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-22 08:58:27,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:27,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-22 08:58:27,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:58:27,778 INFO L87 Difference]: Start difference. First operand 217 states and 273 transitions. Second operand 17 states. [2019-10-22 08:58:28,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:28,489 INFO L93 Difference]: Finished difference Result 270 states and 345 transitions. [2019-10-22 08:58:28,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 08:58:28,490 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 50 [2019-10-22 08:58:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:28,493 INFO L225 Difference]: With dead ends: 270 [2019-10-22 08:58:28,494 INFO L226 Difference]: Without dead ends: 270 [2019-10-22 08:58:28,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2019-10-22 08:58:28,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2019-10-22 08:58:28,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 219. [2019-10-22 08:58:28,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-10-22 08:58:28,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 276 transitions. [2019-10-22 08:58:28,503 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 276 transitions. Word has length 50 [2019-10-22 08:58:28,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:28,503 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 276 transitions. [2019-10-22 08:58:28,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-22 08:58:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 276 transitions. [2019-10-22 08:58:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 08:58:28,504 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:28,504 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:28,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:28,705 INFO L410 AbstractCegarLoop]: === Iteration 13 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:28,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1216993157, now seen corresponding path program 1 times [2019-10-22 08:58:28,705 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:28,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767786335] [2019-10-22 08:58:28,706 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,706 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:28,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:28,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767786335] [2019-10-22 08:58:28,907 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995089638] [2019-10-22 08:58:28,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:29,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 45 conjunts are in the unsatisfiable core [2019-10-22 08:58:29,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:29,025 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:29,025 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-10-22 08:58:29,025 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:29,035 INFO L567 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-10-22 08:58:29,036 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:29,036 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-10-22 08:58:29,062 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-10-22 08:58:29,063 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:29,067 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:29,068 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:29,068 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:15 [2019-10-22 08:58:29,283 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2019-10-22 08:58:29,284 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:29,290 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:29,290 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:29,290 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2019-10-22 08:58:29,410 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:29,410 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 29 [2019-10-22 08:58:29,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:29,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:29,414 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:29,427 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:29,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:29,428 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:29,429 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:23 [2019-10-22 08:58:29,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:29,447 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:29,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 26 [2019-10-22 08:58:29,448 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911964907] [2019-10-22 08:58:29,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-22 08:58:29,448 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:29,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-22 08:58:29,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2019-10-22 08:58:29,449 INFO L87 Difference]: Start difference. First operand 219 states and 276 transitions. Second operand 27 states. [2019-10-22 08:58:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:30,717 INFO L93 Difference]: Finished difference Result 349 states and 429 transitions. [2019-10-22 08:58:30,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-22 08:58:30,717 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 52 [2019-10-22 08:58:30,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:30,719 INFO L225 Difference]: With dead ends: 349 [2019-10-22 08:58:30,719 INFO L226 Difference]: Without dead ends: 349 [2019-10-22 08:58:30,719 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=236, Invalid=1570, Unknown=0, NotChecked=0, Total=1806 [2019-10-22 08:58:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-10-22 08:58:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 254. [2019-10-22 08:58:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-10-22 08:58:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 323 transitions. [2019-10-22 08:58:30,729 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 323 transitions. Word has length 52 [2019-10-22 08:58:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:30,729 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 323 transitions. [2019-10-22 08:58:30,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-22 08:58:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 323 transitions. [2019-10-22 08:58:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 08:58:30,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:30,730 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:30,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:30,931 INFO L410 AbstractCegarLoop]: === Iteration 14 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-10-22 08:58:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:30,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1216993156, now seen corresponding path program 1 times [2019-10-22 08:58:30,931 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:30,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351760184] [2019-10-22 08:58:30,931 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:30,932 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:30,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 08:58:31,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351760184] [2019-10-22 08:58:31,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617108034] [2019-10-22 08:58:31,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:31,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 53 conjunts are in the unsatisfiable core [2019-10-22 08:58:31,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:31,309 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 08:58:31,309 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,312 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:31,312 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,313 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 08:58:31,346 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:31,346 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-10-22 08:58:31,346 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,356 INFO L567 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2019-10-22 08:58:31,356 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,356 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-10-22 08:58:31,376 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-10-22 08:58:31,377 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,382 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:31,385 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-10-22 08:58:31,385 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,395 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:31,396 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:31,396 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:22 [2019-10-22 08:58:31,776 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:31,776 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 55 [2019-10-22 08:58:31,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:31,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:31,778 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:31,787 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:31,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:31,988 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) 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) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) 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.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-22 08:58:31,992 INFO L168 Benchmark]: Toolchain (without parser) took 15205.27 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 293.6 MB). Free memory was 939.2 MB in the beginning and 903.0 MB in the end (delta: 36.2 MB). Peak memory consumption was 329.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,992 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:31,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,994 INFO L168 Benchmark]: Boogie Preprocessor took 54.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,995 INFO L168 Benchmark]: RCFGBuilder took 588.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,995 INFO L168 Benchmark]: TraceAbstraction took 14014.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.0 GB in the beginning and 903.0 MB in the end (delta: 141.3 MB). Peak memory consumption was 302.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:31,999 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 545.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 588.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14014.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.0 GB in the beginning and 903.0 MB in the end (delta: 141.3 MB). Peak memory consumption was 302.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:33,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:33,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:33,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:33,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:33,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:33,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:33,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:33,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:33,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:33,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:33,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:33,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:33,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:33,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:33,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:33,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:33,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:33,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:33,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:33,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:33,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:33,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:33,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:33,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:33,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:33,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:33,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:33,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:33,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:33,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:33,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:33,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:33,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:33,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:33,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:33,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:33,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:33,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:33,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:33,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:33,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-10-22 08:58:33,993 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:33,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:33,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:33,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:33,995 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:33,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:33,995 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:33,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:33,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:33,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:33,996 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:33,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:33,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:33,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:33,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:33,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:33,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:33,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:33,997 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:58:33,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:58:33,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:58:33,998 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_43cd0b68-e881-4117-9a85-866902326285/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-memcleanup) ) 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 -> 27142e71f3089c5c3b5bf4f358882e993f701ffc [2019-10-22 08:58:34,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:34,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:34,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:34,037 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:34,037 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:34,038 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-10-22 08:58:34,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/6e1009d15/02862303902546c0b3650f60e1a74d20/FLAGa3b8ad153 [2019-10-22 08:58:34,580 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:34,580 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-10-22 08:58:34,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/6e1009d15/02862303902546c0b3650f60e1a74d20/FLAGa3b8ad153 [2019-10-22 08:58:35,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/bin/uautomizer/data/6e1009d15/02862303902546c0b3650f60e1a74d20 [2019-10-22 08:58:35,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:35,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:35,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:35,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:35,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:35,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d7a225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35, skipping insertion in model container [2019-10-22 08:58:35,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,082 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:35,114 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:35,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:35,469 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:35,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:35,587 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:35,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35 WrapperNode [2019-10-22 08:58:35,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:35,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:35,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:35,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:35,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... [2019-10-22 08:58:35,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:35,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:35,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:35,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:35,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/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 08:58:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-22 08:58:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-22 08:58:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2019-10-22 08:58:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-22 08:58:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-22 08:58:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2019-10-22 08:58:35,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:35,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:35,700 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:35,701 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:35,702 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:35,703 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:35,706 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:35,707 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-22 08:58:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2019-10-22 08:58:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:36,016 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-22 08:58:36,357 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:36,359 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:58:36,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:36 BoogieIcfgContainer [2019-10-22 08:58:36,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:36,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:36,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:36,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:36,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:35" (1/3) ... [2019-10-22 08:58:36,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46334525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:36, skipping insertion in model container [2019-10-22 08:58:36,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:35" (2/3) ... [2019-10-22 08:58:36,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46334525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:36, skipping insertion in model container [2019-10-22 08:58:36,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:36" (3/3) ... [2019-10-22 08:58:36,370 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2019-10-22 08:58:36,379 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:36,389 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2019-10-22 08:58:36,400 INFO L249 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2019-10-22 08:58:36,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:36,419 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:36,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:36,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:36,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:36,420 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:36,420 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:36,420 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2019-10-22 08:58:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:58:36,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:36,453 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:36,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr1REQUIRES_VIOLATION, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_createErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, sll_lengthErr0REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION]=== [2019-10-22 08:58:36,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:36,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1102659065, now seen corresponding path program 1 times [2019-10-22 08:58:36,472 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:36,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [638386745] [2019-10-22 08:58:36,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_43cd0b68-e881-4117-9a85-866902326285/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 08:58:36,700 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:58:36,700 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 08:58:36,704 INFO L168 Benchmark]: Toolchain (without parser) took 1638.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -124.4 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:36,705 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:36,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:36,706 INFO L168 Benchmark]: Boogie Preprocessor took 60.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:36,706 INFO L168 Benchmark]: RCFGBuilder took 712.20 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:36,707 INFO L168 Benchmark]: TraceAbstraction took 340.32 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:36,709 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 519.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 712.20 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 340.32 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: 12.1 MB). Peak memory consumption was 12.1 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...