./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0232-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0232-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ee3a23cf8ca0f6d04d9d74ad314377c3dff5fab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0232-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ee3a23cf8ca0f6d04d9d74ad314377c3dff5fab ................................................................................................................................................................................................................................................................................................................................................................ 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 08:58:04,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:04,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:04,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:04,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:04,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:04,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:04,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:04,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:04,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:04,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:04,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:04,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:04,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:04,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:04,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:04,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:04,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:04,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:04,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:04,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:04,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:04,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:04,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:04,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:04,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:04,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:04,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:04,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:04,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:04,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:04,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:04,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:04,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:04,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:04,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:04,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:04,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:04,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:04,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:04,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:04,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:58:04,228 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:04,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:04,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:04,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:04,230 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:04,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:04,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:04,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:04,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:04,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:04,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:04,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:04,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:04,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:04,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:04,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:04,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:04,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:04,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:04,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:04,233 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_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ee3a23cf8ca0f6d04d9d74ad314377c3dff5fab [2019-10-22 08:58:04,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:04,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:04,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:04,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:04,280 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:04,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0232-1.i [2019-10-22 08:58:04,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/9a0416c54/cc82d374bc834d2d90e42730973e0837/FLAGa3e045106 [2019-10-22 08:58:04,785 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:04,786 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/sv-benchmarks/c/memsafety/test-0232-1.i [2019-10-22 08:58:04,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/9a0416c54/cc82d374bc834d2d90e42730973e0837/FLAGa3e045106 [2019-10-22 08:58:05,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/9a0416c54/cc82d374bc834d2d90e42730973e0837 [2019-10-22 08:58:05,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:05,304 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:05,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:05,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:05,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:05,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea50d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05, skipping insertion in model container [2019-10-22 08:58:05,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,322 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:05,355 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:05,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:05,667 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:05,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:05,742 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:05,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05 WrapperNode [2019-10-22 08:58:05,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:05,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:05,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:05,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:05,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... [2019-10-22 08:58:05,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:05,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:05,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:05,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:05,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/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 08:58:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:58:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:58:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:58:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-10-22 08:58:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:05,876 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:05,877 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:05,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:05,879 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:05,880 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:05,881 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-10-22 08:58:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:05,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:05,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:05,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:05,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:06,338 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:06,338 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 08:58:06,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:06 BoogieIcfgContainer [2019-10-22 08:58:06,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:06,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:06,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:06,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:06,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:05" (1/3) ... [2019-10-22 08:58:06,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357493b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:06, skipping insertion in model container [2019-10-22 08:58:06,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:05" (2/3) ... [2019-10-22 08:58:06,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357493b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:06, skipping insertion in model container [2019-10-22 08:58:06,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:06" (3/3) ... [2019-10-22 08:58:06,347 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0232-1.i [2019-10-22 08:58:06,356 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:06,364 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2019-10-22 08:58:06,374 INFO L249 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2019-10-22 08:58:06,391 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:06,391 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:06,391 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:06,391 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:06,391 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:06,392 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:06,392 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:06,392 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-10-22 08:58:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:58:06,414 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:06,415 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:06,417 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:06,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:06,422 INFO L82 PathProgramCache]: Analyzing trace with hash -712556726, now seen corresponding path program 1 times [2019-10-22 08:58:06,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:06,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676759262] [2019-10-22 08:58:06,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:06,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:06,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:06,568 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 08:58:06,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676759262] [2019-10-22 08:58:06,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:06,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:06,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088008318] [2019-10-22 08:58:06,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:06,574 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:06,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:06,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:06,589 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 3 states. [2019-10-22 08:58:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:06,758 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2019-10-22 08:58:06,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:06,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 08:58:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:06,769 INFO L225 Difference]: With dead ends: 89 [2019-10-22 08:58:06,769 INFO L226 Difference]: Without dead ends: 86 [2019-10-22 08:58:06,770 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-22 08:58:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-10-22 08:58:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-10-22 08:58:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2019-10-22 08:58:06,807 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 8 [2019-10-22 08:58:06,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:06,808 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2019-10-22 08:58:06,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:06,808 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2019-10-22 08:58:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:06,808 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:06,809 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:06,809 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:06,809 INFO L82 PathProgramCache]: Analyzing trace with hash -614318855, now seen corresponding path program 1 times [2019-10-22 08:58:06,809 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:06,810 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473769226] [2019-10-22 08:58:06,810 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:06,810 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:06,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:06,944 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 08:58:06,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473769226] [2019-10-22 08:58:06,944 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:06,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:06,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232678721] [2019-10-22 08:58:06,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:06,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:06,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:06,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:06,951 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand 6 states. [2019-10-22 08:58:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:07,278 INFO L93 Difference]: Finished difference Result 99 states and 103 transitions. [2019-10-22 08:58:07,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:07,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 08:58:07,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:07,280 INFO L225 Difference]: With dead ends: 99 [2019-10-22 08:58:07,280 INFO L226 Difference]: Without dead ends: 99 [2019-10-22 08:58:07,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:07,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-10-22 08:58:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2019-10-22 08:58:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 08:58:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2019-10-22 08:58:07,293 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 9 [2019-10-22 08:58:07,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:07,294 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2019-10-22 08:58:07,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:07,294 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2019-10-22 08:58:07,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:07,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:07,294 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:07,295 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:07,295 INFO L82 PathProgramCache]: Analyzing trace with hash -614318854, now seen corresponding path program 1 times [2019-10-22 08:58:07,295 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:07,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532205155] [2019-10-22 08:58:07,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:07,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:07,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:07,407 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 08:58:07,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532205155] [2019-10-22 08:58:07,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:07,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:07,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339087514] [2019-10-22 08:58:07,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:07,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:07,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:07,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:07,414 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 6 states. [2019-10-22 08:58:07,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:07,701 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2019-10-22 08:58:07,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:07,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 08:58:07,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:07,706 INFO L225 Difference]: With dead ends: 85 [2019-10-22 08:58:07,706 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 08:58:07,706 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 08:58:07,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2019-10-22 08:58:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-22 08:58:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2019-10-22 08:58:07,726 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 9 [2019-10-22 08:58:07,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:07,726 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2019-10-22 08:58:07,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:07,726 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2019-10-22 08:58:07,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:07,727 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:07,727 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:07,727 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:07,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:07,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1864015253, now seen corresponding path program 1 times [2019-10-22 08:58:07,728 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:07,728 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152758454] [2019-10-22 08:58:07,728 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:07,728 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:07,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:07,784 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 08:58:07,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152758454] [2019-10-22 08:58:07,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:07,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:07,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498107988] [2019-10-22 08:58:07,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:07,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:07,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:07,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:07,786 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 4 states. [2019-10-22 08:58:07,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:07,919 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2019-10-22 08:58:07,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:07,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:58:07,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:07,920 INFO L225 Difference]: With dead ends: 77 [2019-10-22 08:58:07,921 INFO L226 Difference]: Without dead ends: 77 [2019-10-22 08:58:07,921 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 08:58:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-10-22 08:58:07,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-10-22 08:58:07,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 08:58:07,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2019-10-22 08:58:07,926 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2019-10-22 08:58:07,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:07,927 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2019-10-22 08:58:07,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:07,927 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2019-10-22 08:58:07,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:07,928 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:07,928 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:07,928 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:07,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:07,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1864015252, now seen corresponding path program 1 times [2019-10-22 08:58:07,929 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:07,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030629182] [2019-10-22 08:58:07,929 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:07,929 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:07,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:07,970 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 08:58:07,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030629182] [2019-10-22 08:58:07,971 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:07,971 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:07,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238353958] [2019-10-22 08:58:07,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:07,972 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:07,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:07,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:07,973 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand 4 states. [2019-10-22 08:58:08,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:08,079 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2019-10-22 08:58:08,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:08,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:58:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:08,080 INFO L225 Difference]: With dead ends: 73 [2019-10-22 08:58:08,080 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 08:58:08,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 08:58:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 08:58:08,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-10-22 08:58:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 08:58:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2019-10-22 08:58:08,084 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 10 [2019-10-22 08:58:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:08,084 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2019-10-22 08:58:08,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2019-10-22 08:58:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:58:08,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:08,085 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:08,086 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:08,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:08,086 INFO L82 PathProgramCache]: Analyzing trace with hash 734581444, now seen corresponding path program 1 times [2019-10-22 08:58:08,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:08,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474920507] [2019-10-22 08:58:08,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:08,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:08,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,180 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 08:58:08,180 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474920507] [2019-10-22 08:58:08,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:08,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 08:58:08,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158165462] [2019-10-22 08:58:08,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:08,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:08,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:08,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:08,182 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand 9 states. [2019-10-22 08:58:08,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:08,474 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2019-10-22 08:58:08,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 08:58:08,474 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-10-22 08:58:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:08,475 INFO L225 Difference]: With dead ends: 84 [2019-10-22 08:58:08,475 INFO L226 Difference]: Without dead ends: 84 [2019-10-22 08:58:08,476 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-10-22 08:58:08,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-10-22 08:58:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-10-22 08:58:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-10-22 08:58:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-10-22 08:58:08,483 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 15 [2019-10-22 08:58:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:08,483 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-10-22 08:58:08,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-10-22 08:58:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 08:58:08,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:08,484 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:08,484 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:08,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:08,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1297466416, now seen corresponding path program 1 times [2019-10-22 08:58:08,485 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:08,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904487945] [2019-10-22 08:58:08,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:08,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:08,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,573 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 08:58:08,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904487945] [2019-10-22 08:58:08,574 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:08,574 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:08,574 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632206520] [2019-10-22 08:58:08,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:08,575 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:08,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:08,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:08,575 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 8 states. [2019-10-22 08:58:08,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:08,738 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2019-10-22 08:58:08,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:08,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2019-10-22 08:58:08,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:08,739 INFO L225 Difference]: With dead ends: 79 [2019-10-22 08:58:08,740 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 08:58:08,740 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:58:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 08:58:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2019-10-22 08:58:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-22 08:58:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2019-10-22 08:58:08,745 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 83 transitions. Word has length 16 [2019-10-22 08:58:08,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:08,745 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 83 transitions. [2019-10-22 08:58:08,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2019-10-22 08:58:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:58:08,746 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:08,746 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, 1, 1, 1, 1] [2019-10-22 08:58:08,746 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:08,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1101417948, now seen corresponding path program 1 times [2019-10-22 08:58:08,747 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:08,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653327946] [2019-10-22 08:58:08,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:08,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:08,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:08,876 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 08:58:08,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653327946] [2019-10-22 08:58:08,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:08,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:08,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114888362] [2019-10-22 08:58:08,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:08,877 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:08,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:08,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:08,877 INFO L87 Difference]: Start difference. First operand 76 states and 83 transitions. Second operand 9 states. [2019-10-22 08:58:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:09,125 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2019-10-22 08:58:09,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:09,125 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-10-22 08:58:09,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:09,126 INFO L225 Difference]: With dead ends: 84 [2019-10-22 08:58:09,126 INFO L226 Difference]: Without dead ends: 84 [2019-10-22 08:58:09,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:09,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-10-22 08:58:09,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 75. [2019-10-22 08:58:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 08:58:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2019-10-22 08:58:09,131 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 24 [2019-10-22 08:58:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:09,139 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2019-10-22 08:58:09,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:09,139 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2019-10-22 08:58:09,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:58:09,139 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:09,139 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, 1, 1, 1, 1] [2019-10-22 08:58:09,140 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:09,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:09,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1101417949, now seen corresponding path program 1 times [2019-10-22 08:58:09,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:09,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81102041] [2019-10-22 08:58:09,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:09,277 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81102041] [2019-10-22 08:58:09,277 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:09,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:09,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786840702] [2019-10-22 08:58:09,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:09,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:09,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:09,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:09,279 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand 9 states. [2019-10-22 08:58:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:09,531 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2019-10-22 08:58:09,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:09,532 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-10-22 08:58:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:09,532 INFO L225 Difference]: With dead ends: 85 [2019-10-22 08:58:09,532 INFO L226 Difference]: Without dead ends: 85 [2019-10-22 08:58:09,533 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:09,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-22 08:58:09,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 74. [2019-10-22 08:58:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-22 08:58:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-10-22 08:58:09,537 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 24 [2019-10-22 08:58:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:09,537 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2019-10-22 08:58:09,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:09,537 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2019-10-22 08:58:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:58:09,538 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:09,538 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, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:09,538 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:09,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1920859604, now seen corresponding path program 1 times [2019-10-22 08:58:09,539 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:09,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558546120] [2019-10-22 08:58:09,539 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,539 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,659 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 08:58:09,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558546120] [2019-10-22 08:58:09,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:09,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:09,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529727597] [2019-10-22 08:58:09,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:09,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:09,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:09,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:09,661 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 8 states. [2019-10-22 08:58:09,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:09,866 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2019-10-22 08:58:09,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:09,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-10-22 08:58:09,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:09,868 INFO L225 Difference]: With dead ends: 68 [2019-10-22 08:58:09,868 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 08:58:09,868 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 08:58:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 08:58:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 08:58:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2019-10-22 08:58:09,873 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 26 [2019-10-22 08:58:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:09,873 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2019-10-22 08:58:09,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2019-10-22 08:58:09,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:58:09,874 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:09,874 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:09,874 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:09,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:09,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1208047573, now seen corresponding path program 1 times [2019-10-22 08:58:09,875 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:09,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545612572] [2019-10-22 08:58:09,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:09,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:09,981 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 08:58:09,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545612572] [2019-10-22 08:58:09,982 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:09,982 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:09,982 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251347363] [2019-10-22 08:58:09,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:09,983 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:09,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:09,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:09,983 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 8 states. [2019-10-22 08:58:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:10,168 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2019-10-22 08:58:10,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:10,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 08:58:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:10,169 INFO L225 Difference]: With dead ends: 67 [2019-10-22 08:58:10,169 INFO L226 Difference]: Without dead ends: 67 [2019-10-22 08:58:10,169 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:10,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-10-22 08:58:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-10-22 08:58:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-10-22 08:58:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2019-10-22 08:58:10,172 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 27 [2019-10-22 08:58:10,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:10,173 INFO L462 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2019-10-22 08:58:10,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2019-10-22 08:58:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 08:58:10,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:10,174 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:10,174 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:10,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1205230973, now seen corresponding path program 1 times [2019-10-22 08:58:10,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:10,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186153131] [2019-10-22 08:58:10,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:10,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:10,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:10,277 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186153131] [2019-10-22 08:58:10,277 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:10,277 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:58:10,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994009179] [2019-10-22 08:58:10,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:10,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:10,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:10,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:10,278 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 8 states. [2019-10-22 08:58:10,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:10,523 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2019-10-22 08:58:10,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:10,524 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-10-22 08:58:10,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:10,525 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:58:10,525 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 08:58:10,525 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 08:58:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-22 08:58:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 08:58:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2019-10-22 08:58:10,529 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 28 [2019-10-22 08:58:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:10,529 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2019-10-22 08:58:10,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2019-10-22 08:58:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:58:10,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:10,530 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] [2019-10-22 08:58:10,530 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:10,539 INFO L82 PathProgramCache]: Analyzing trace with hash 584753878, now seen corresponding path program 1 times [2019-10-22 08:58:10,539 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:10,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687508856] [2019-10-22 08:58:10,539 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:10,540 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:10,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:10,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687508856] [2019-10-22 08:58:10,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856009121] [2019-10-22 08:58:10,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/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 08:58:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:10,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 36 conjunts are in the unsatisfiable core [2019-10-22 08:58:10,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:10,926 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 08:58:10,926 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:10,933 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:10,934 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 08:58:10,934 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2019-10-22 08:58:10,994 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:10,994 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 16 treesize of output 44 [2019-10-22 08:58:10,995 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:11,011 INFO L567 ElimStorePlain]: treesize reduction 26, result has 40.9 percent of original size [2019-10-22 08:58:11,011 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:11,011 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2019-10-22 08:58:11,089 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-10-22 08:58:11,089 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 20 [2019-10-22 08:58:11,089 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:11,095 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:11,096 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:11,096 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2019-10-22 08:58:11,163 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:11,164 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2019-10-22 08:58:11,164 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:11,168 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:11,169 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:11,169 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:11 [2019-10-22 08:58:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:11,182 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:11,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2019-10-22 08:58:11,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216006701] [2019-10-22 08:58:11,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-22 08:58:11,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:11,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-22 08:58:11,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:58:11,183 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 18 states. [2019-10-22 08:58:11,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:11,875 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2019-10-22 08:58:11,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 08:58:11,875 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2019-10-22 08:58:11,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:11,876 INFO L225 Difference]: With dead ends: 72 [2019-10-22 08:58:11,876 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 08:58:11,877 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2019-10-22 08:58:11,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 08:58:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2019-10-22 08:58:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-22 08:58:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2019-10-22 08:58:11,882 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 29 [2019-10-22 08:58:11,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:11,882 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2019-10-22 08:58:11,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-22 08:58:11,882 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-10-22 08:58:11,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:58:11,883 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:11,883 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] [2019-10-22 08:58:12,083 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:12,085 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:12,088 INFO L82 PathProgramCache]: Analyzing trace with hash 584753879, now seen corresponding path program 1 times [2019-10-22 08:58:12,088 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:12,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881022637] [2019-10-22 08:58:12,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:12,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:12,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:12,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881022637] [2019-10-22 08:58:12,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146055858] [2019-10-22 08:58:12,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/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 08:58:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 54 conjunts are in the unsatisfiable core [2019-10-22 08:58:12,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:12,412 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 08:58:12,412 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,417 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,421 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 08:58:12,421 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,426 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,427 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 08:58:12,427 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:26 [2019-10-22 08:58:12,477 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,477 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-10-22 08:58:12,478 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,485 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,489 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2019-10-22 08:58:12,490 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,506 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,506 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,506 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:33 [2019-10-22 08:58:12,580 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-10-22 08:58:12,580 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2019-10-22 08:58:12,581 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,594 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,609 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-10-22 08:58:12,609 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 24 [2019-10-22 08:58:12,610 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,621 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,622 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:12,623 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:60, output treesize:52 [2019-10-22 08:58:12,674 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,675 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 28 [2019-10-22 08:58:12,675 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,682 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,692 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:58:12,692 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2019-10-22 08:58:12,693 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:58:12,703 INFO L567 ElimStorePlain]: treesize reduction 12, result has 60.0 percent of original size [2019-10-22 08:58:12,704 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:58:12,704 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:66, output treesize:18 [2019-10-22 08:58:12,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:12,729 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:12,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2019-10-22 08:58:12,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293484307] [2019-10-22 08:58:12,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-22 08:58:12,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:12,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-22 08:58:12,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2019-10-22 08:58:12,730 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand 19 states. [2019-10-22 08:58:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:13,536 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2019-10-22 08:58:13,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 08:58:13,537 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 29 [2019-10-22 08:58:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:13,537 INFO L225 Difference]: With dead ends: 71 [2019-10-22 08:58:13,537 INFO L226 Difference]: Without dead ends: 71 [2019-10-22 08:58:13,538 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2019-10-22 08:58:13,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-10-22 08:58:13,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2019-10-22 08:58:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-10-22 08:58:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2019-10-22 08:58:13,541 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 29 [2019-10-22 08:58:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:13,541 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2019-10-22 08:58:13,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-22 08:58:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2019-10-22 08:58:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:58:13,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:13,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:13,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:13,752 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:13,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:13,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1292545427, now seen corresponding path program 1 times [2019-10-22 08:58:13,753 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:13,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52348157] [2019-10-22 08:58:13,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:13,753 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:13,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:13,891 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 08:58:13,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52348157] [2019-10-22 08:58:13,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:13,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:13,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500734740] [2019-10-22 08:58:13,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:13,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:13,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:13,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:13,893 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 9 states. [2019-10-22 08:58:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:14,112 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2019-10-22 08:58:14,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:14,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-10-22 08:58:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:14,113 INFO L225 Difference]: With dead ends: 68 [2019-10-22 08:58:14,113 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 08:58:14,113 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:58:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 08:58:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 08:58:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 08:58:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2019-10-22 08:58:14,116 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 29 [2019-10-22 08:58:14,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:14,116 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2019-10-22 08:58:14,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:14,116 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2019-10-22 08:58:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:58:14,117 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:14,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:14,117 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:14,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:14,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1414202496, now seen corresponding path program 1 times [2019-10-22 08:58:14,118 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:14,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006208277] [2019-10-22 08:58:14,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:14,118 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:14,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:14,231 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 08:58:14,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006208277] [2019-10-22 08:58:14,231 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:14,231 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 08:58:14,231 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038567628] [2019-10-22 08:58:14,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:58:14,232 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:14,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:58:14,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:58:14,232 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 10 states. [2019-10-22 08:58:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:14,463 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2019-10-22 08:58:14,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:14,464 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2019-10-22 08:58:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:14,465 INFO L225 Difference]: With dead ends: 64 [2019-10-22 08:58:14,465 INFO L226 Difference]: Without dead ends: 64 [2019-10-22 08:58:14,465 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:58:14,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-10-22 08:58:14,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-10-22 08:58:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-22 08:58:14,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2019-10-22 08:58:14,468 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 30 [2019-10-22 08:58:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:14,468 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2019-10-22 08:58:14,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:58:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2019-10-22 08:58:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:58:14,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:14,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:14,469 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION]=== [2019-10-22 08:58:14,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:14,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1982425082, now seen corresponding path program 1 times [2019-10-22 08:58:14,470 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:14,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930326450] [2019-10-22 08:58:14,470 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:14,470 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:14,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:14,538 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:14,538 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:14,554 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 08:58:14,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:14 BoogieIcfgContainer [2019-10-22 08:58:14,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:14,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:14,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:14,577 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:14,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:06" (3/4) ... [2019-10-22 08:58:14,582 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:14,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:14,586 INFO L168 Benchmark]: Toolchain (without parser) took 9279.77 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 344.5 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -260.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:14,586 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:14,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:14,587 INFO L168 Benchmark]: Boogie Preprocessor took 67.76 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 08:58:14,587 INFO L168 Benchmark]: RCFGBuilder took 528.35 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:14,588 INFO L168 Benchmark]: TraceAbstraction took 8235.39 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -119.9 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:14,588 INFO L168 Benchmark]: Witness Printer took 6.25 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:14,590 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.76 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 528.35 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8235.39 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -119.9 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.25 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 526]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 526. Possible FailurePath: [L528] struct item *list = ((void *)0); VAL [list={-1:0}] [L530] CALL append(&list) VAL [plist={-1:0}] [L519] struct item *item = malloc(sizeof *item); VAL [item={1:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L520] EXPR \read(**plist) VAL [\read(**plist)={0:0}, item={1:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L520] item->next = *plist VAL [\read(**plist)={0:0}, item={1:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L521] EXPR item->next VAL [item={1:0}, item->next={0:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L521-L523] EXPR (item->next) ? item->next->data : malloc(sizeof *item) [L521-L523] EXPR (item->next) ? item->next->data : malloc(sizeof *item) VAL [(item->next) ? item->next->data : malloc(sizeof *item)={2:0}, item={1:0}, item->next={0:0}, malloc(sizeof *item)={2:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L521-L523] item->data = (item->next) ? item->next->data : malloc(sizeof *item) VAL [(item->next) ? item->next->data : malloc(sizeof *item)={2:0}, item={1:0}, item->next={0:0}, malloc(sizeof *item)={2:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L524] *plist = item VAL [item={1:0}, malloc(sizeof *item)={2:0}, malloc(sizeof *item)={1:0}, plist={-1:0}, plist={-1:0}] [L530] RET append(&list) VAL [list={-1:0}] [L531] COND FALSE !(__VERIFIER_nondet_int()) [L532] \read(*list) VAL [\read(*list)={1:0}, list={-1:0}] [L532] COND TRUE \read(*list) [L533] EXPR \read(*list) VAL [\read(*list)={1:0}, list={-1:0}] [L533] EXPR list->next VAL [\read(*list)={1:0}, list={-1:0}, list->next={0:0}] [L533] struct item *next = list->next; [L534] EXPR \read(*list) VAL [\read(*list)={1:0}, list={-1:0}, next={0:0}] [L534] free(list) VAL [\read(*list)={1:0}, list={-1:0}, next={0:0}] [L534] free(list) VAL [\read(*list)={1:0}, list={-1:0}, next={0:0}] [L534] free(list) [L535] list = next VAL [list={-1:0}, next={0:0}] [L537] \read(*list) VAL [\read(*list)={0:0}, list={-1:0}, next={0:0}] [L537] COND FALSE !(\read(*list)) [L542] return 0; [L528] struct item *list = ((void *)0); [L542] return 0; VAL [\result=0, next={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 104 locations, 41 error locations. Result: UNSAFE, OverallTime: 8.1s, OverallIterations: 17, TraceHistogramMax: 2, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 736 SDtfs, 761 SDslu, 2160 SDs, 0 SdLazy, 3561 SolverSat, 171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 47 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 415 NumberOfCodeBlocks, 415 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 363 ConstructedInterpolants, 11 QuantifiedInterpolants, 85497 SizeOfPredicates, 35 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 6/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:16,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:16,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:16,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:16,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:16,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:16,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:16,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:16,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:16,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:16,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:16,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:16,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:16,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:16,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:16,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:16,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:16,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:16,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:16,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:16,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:16,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:16,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:16,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:16,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:16,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:16,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:16,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:16,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:16,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:16,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:16,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:16,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:16,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:16,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:16,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:16,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:16,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:16,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:16,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:16,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:16,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 08:58:16,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:16,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:16,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:16,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:16,746 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:16,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:16,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:16,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:16,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:16,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:16,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:16,747 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:16,748 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:16,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:16,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:16,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:16,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:16,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:16,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:16,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:16,750 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:58:16,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:58:16,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:58:16,751 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_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ee3a23cf8ca0f6d04d9d74ad314377c3dff5fab [2019-10-22 08:58:16,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:16,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:16,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:16,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:16,793 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:16,794 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0232-1.i [2019-10-22 08:58:16,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/51e1c74cb/d27895ba0f2042948bc5320cc6ecdd4f/FLAG76bed7cd9 [2019-10-22 08:58:17,323 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:17,323 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/sv-benchmarks/c/memsafety/test-0232-1.i [2019-10-22 08:58:17,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/51e1c74cb/d27895ba0f2042948bc5320cc6ecdd4f/FLAG76bed7cd9 [2019-10-22 08:58:17,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/bin/uautomizer/data/51e1c74cb/d27895ba0f2042948bc5320cc6ecdd4f [2019-10-22 08:58:17,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:17,827 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:17,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:17,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:17,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:17,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e3f64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17, skipping insertion in model container [2019-10-22 08:58:17,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,844 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:17,875 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:18,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:18,251 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:18,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:18,328 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:18,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18 WrapperNode [2019-10-22 08:58:18,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:18,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:18,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:18,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:18,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... [2019-10-22 08:58:18,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:18,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:18,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:18,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:18,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/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 08:58:18,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:18,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:18,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:18,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:58:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:58:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:58:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-10-22 08:58:18,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:58:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:18,439 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:58:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-10-22 08:58:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:19,117 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:19,117 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 08:58:19,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19 BoogieIcfgContainer [2019-10-22 08:58:19,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:19,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:19,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:19,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:19,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:17" (1/3) ... [2019-10-22 08:58:19,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495482a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:19, skipping insertion in model container [2019-10-22 08:58:19,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:18" (2/3) ... [2019-10-22 08:58:19,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495482a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:19, skipping insertion in model container [2019-10-22 08:58:19,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:19" (3/3) ... [2019-10-22 08:58:19,131 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0232-1.i [2019-10-22 08:58:19,140 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:19,150 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2019-10-22 08:58:19,160 INFO L249 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2019-10-22 08:58:19,180 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:19,181 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:19,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:19,181 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:19,182 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:19,182 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:19,182 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:19,182 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2019-10-22 08:58:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:58:19,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,209 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:19,211 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr11REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr21ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr26ENSURES_VIOLATIONMEMORY_LEAK, appendErr1REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr10REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION]=== [2019-10-22 08:58:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1838646891, now seen corresponding path program 1 times [2019-10-22 08:58:19,221 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:58:19,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1544519755] [2019-10-22 08:58:19,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af8c334a-c1c2-464a-936e-3658a6080473/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 08:58:19,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:58:19,442 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:58:19,450 INFO L168 Benchmark]: Toolchain (without parser) took 1619.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -99.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:19,450 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:19,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:19,451 INFO L168 Benchmark]: Boogie Preprocessor took 60.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:19,455 INFO L168 Benchmark]: RCFGBuilder took 728.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:19,456 INFO L168 Benchmark]: TraceAbstraction took 325.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:19,459 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 500.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 728.77 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: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 325.64 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: 13.1 MB). Peak memory consumption was 13.1 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...