./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-queue-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_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 7a8c56772773bb41a30a4208cc9fc6fce3f9d2e2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 7a8c56772773bb41a30a4208cc9fc6fce3f9d2e2 ..................................................................................................................................................................................................................................................................................................................................................... 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 08:54:12,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:12,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:12,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:12,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:12,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:12,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:12,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:12,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:12,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:12,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:12,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:12,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:12,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:12,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:12,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:12,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:12,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:12,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:12,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:12,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:12,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:12,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:12,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:12,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:12,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:12,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:12,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:12,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:12,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:12,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:12,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:12,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:12,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:12,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:12,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:12,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:12,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:12,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:12,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:12,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:12,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:54:12,292 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:12,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:12,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:12,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:12,294 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:12,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:12,294 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:12,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:12,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:12,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:12,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:12,295 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:54:12,296 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:54:12,296 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:54:12,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:12,296 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:12,296 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:12,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:12,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:12,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:12,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:12,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:12,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:12,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:12,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:12,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:12,298 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_cf4f7678-4838-437d-9313-e8d843c74842/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 -> 7a8c56772773bb41a30a4208cc9fc6fce3f9d2e2 [2019-10-22 08:54:12,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:12,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:12,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:12,341 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:12,341 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:12,342 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-queue-1.i [2019-10-22 08:54:12,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/f4057ac4e/6899ebe66af3474e8c69aa9fd61a72ca/FLAG0119c8a53 [2019-10-22 08:54:12,820 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:12,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/sv-benchmarks/c/forester-heap/sll-queue-1.i [2019-10-22 08:54:12,830 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/f4057ac4e/6899ebe66af3474e8c69aa9fd61a72ca/FLAG0119c8a53 [2019-10-22 08:54:13,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/f4057ac4e/6899ebe66af3474e8c69aa9fd61a72ca [2019-10-22 08:54:13,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:13,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:54:13,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:13,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:13,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:13,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a78bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13, skipping insertion in model container [2019-10-22 08:54:13,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,188 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:13,223 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:13,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:13,540 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:13,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:13,625 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:13,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13 WrapperNode [2019-10-22 08:54:13,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:13,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:13,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:13,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:13,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... [2019-10-22 08:54:13,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:13,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:13,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:13,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:13,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 08:54:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:54:13,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:54:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:54:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:54:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:54:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:54:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:54:13,765 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:54:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:54:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:54:13,766 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:54:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:54:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:54:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:54:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:54:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:54:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:54:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:54:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:54:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:54:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:54:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:54:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:54:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:54:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:54:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:54:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:54:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:54:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:54:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:54:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:54:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:54:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:14,410 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:14,410 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-10-22 08:54:14,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:14 BoogieIcfgContainer [2019-10-22 08:54:14,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:14,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:14,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:14,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:14,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:13" (1/3) ... [2019-10-22 08:54:14,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32374bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:14, skipping insertion in model container [2019-10-22 08:54:14,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:13" (2/3) ... [2019-10-22 08:54:14,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32374bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:14, skipping insertion in model container [2019-10-22 08:54:14,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:14" (3/3) ... [2019-10-22 08:54:14,422 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-queue-1.i [2019-10-22 08:54:14,432 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:14,439 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 56 error locations. [2019-10-22 08:54:14,449 INFO L249 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2019-10-22 08:54:14,468 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:14,469 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:54:14,470 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:14,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:14,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:14,470 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:14,470 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:14,470 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-10-22 08:54:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:54:14,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:14,505 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:14,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:14,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:14,515 INFO L82 PathProgramCache]: Analyzing trace with hash 275253267, now seen corresponding path program 1 times [2019-10-22 08:54:14,523 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:14,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798002105] [2019-10-22 08:54:14,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:14,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:14,692 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 08:54:14,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798002105] [2019-10-22 08:54:14,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:14,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:14,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684169601] [2019-10-22 08:54:14,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:14,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:14,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:14,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:14,718 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 4 states. [2019-10-22 08:54:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:15,128 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2019-10-22 08:54:15,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:54:15,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:54:15,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:15,142 INFO L225 Difference]: With dead ends: 144 [2019-10-22 08:54:15,143 INFO L226 Difference]: Without dead ends: 140 [2019-10-22 08:54:15,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-10-22 08:54:15,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2019-10-22 08:54:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 08:54:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2019-10-22 08:54:15,201 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 7 [2019-10-22 08:54:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:15,201 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2019-10-22 08:54:15,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2019-10-22 08:54:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:54:15,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:15,202 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:15,202 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:15,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:15,203 INFO L82 PathProgramCache]: Analyzing trace with hash 275253268, now seen corresponding path program 1 times [2019-10-22 08:54:15,203 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:15,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168196645] [2019-10-22 08:54:15,204 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,204 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,266 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 08:54:15,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168196645] [2019-10-22 08:54:15,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:15,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:15,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505832877] [2019-10-22 08:54:15,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:15,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:15,282 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand 4 states. [2019-10-22 08:54:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:15,567 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2019-10-22 08:54:15,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:15,568 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:54:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:15,569 INFO L225 Difference]: With dead ends: 130 [2019-10-22 08:54:15,569 INFO L226 Difference]: Without dead ends: 130 [2019-10-22 08:54:15,570 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 08:54:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-22 08:54:15,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2019-10-22 08:54:15,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-22 08:54:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2019-10-22 08:54:15,584 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 7 [2019-10-22 08:54:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:15,584 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2019-10-22 08:54:15,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2019-10-22 08:54:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:54:15,585 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:15,585 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:15,586 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:15,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:15,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1234366853, now seen corresponding path program 1 times [2019-10-22 08:54:15,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:15,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560018039] [2019-10-22 08:54:15,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:15,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:15,683 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 08:54:15,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560018039] [2019-10-22 08:54:15,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:15,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:15,690 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505993522] [2019-10-22 08:54:15,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:15,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:15,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:15,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:15,691 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand 5 states. [2019-10-22 08:54:15,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:15,986 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2019-10-22 08:54:15,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:15,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 08:54:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:15,988 INFO L225 Difference]: With dead ends: 134 [2019-10-22 08:54:15,988 INFO L226 Difference]: Without dead ends: 134 [2019-10-22 08:54:15,988 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:54:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-22 08:54:15,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2019-10-22 08:54:15,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-22 08:54:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 142 transitions. [2019-10-22 08:54:15,997 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 142 transitions. Word has length 12 [2019-10-22 08:54:15,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:15,997 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 142 transitions. [2019-10-22 08:54:15,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 142 transitions. [2019-10-22 08:54:15,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:54:15,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:15,998 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:15,998 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:15,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1234366852, now seen corresponding path program 1 times [2019-10-22 08:54:15,999 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:15,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328205870] [2019-10-22 08:54:15,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:16,000 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:16,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:16,071 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 08:54:16,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328205870] [2019-10-22 08:54:16,072 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:16,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:16,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629746222] [2019-10-22 08:54:16,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:16,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:16,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:16,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:16,074 INFO L87 Difference]: Start difference. First operand 128 states and 142 transitions. Second operand 5 states. [2019-10-22 08:54:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:16,355 INFO L93 Difference]: Finished difference Result 196 states and 211 transitions. [2019-10-22 08:54:16,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:16,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 08:54:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:16,356 INFO L225 Difference]: With dead ends: 196 [2019-10-22 08:54:16,356 INFO L226 Difference]: Without dead ends: 196 [2019-10-22 08:54:16,357 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:54:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-22 08:54:16,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 132. [2019-10-22 08:54:16,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 08:54:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 146 transitions. [2019-10-22 08:54:16,368 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 146 transitions. Word has length 12 [2019-10-22 08:54:16,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:16,368 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 146 transitions. [2019-10-22 08:54:16,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 146 transitions. [2019-10-22 08:54:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:54:16,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:16,369 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:16,370 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:16,370 INFO L82 PathProgramCache]: Analyzing trace with hash 487063775, now seen corresponding path program 1 times [2019-10-22 08:54:16,370 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:16,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495008025] [2019-10-22 08:54:16,371 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:16,371 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:16,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:16,437 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 08:54:16,438 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495008025] [2019-10-22 08:54:16,438 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:16,438 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:54:16,438 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787045474] [2019-10-22 08:54:16,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:54:16,439 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:16,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:54:16,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:54:16,440 INFO L87 Difference]: Start difference. First operand 132 states and 146 transitions. Second operand 7 states. [2019-10-22 08:54:16,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:16,945 INFO L93 Difference]: Finished difference Result 216 states and 235 transitions. [2019-10-22 08:54:16,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:54:16,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-22 08:54:16,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:16,951 INFO L225 Difference]: With dead ends: 216 [2019-10-22 08:54:16,952 INFO L226 Difference]: Without dead ends: 216 [2019-10-22 08:54:16,952 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:54:16,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-10-22 08:54:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 131. [2019-10-22 08:54:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-22 08:54:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 145 transitions. [2019-10-22 08:54:16,965 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 145 transitions. Word has length 15 [2019-10-22 08:54:16,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:16,965 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 145 transitions. [2019-10-22 08:54:16,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:54:16,965 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 145 transitions. [2019-10-22 08:54:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:54:16,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:16,966 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:16,966 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:16,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:16,966 INFO L82 PathProgramCache]: Analyzing trace with hash 487063776, now seen corresponding path program 1 times [2019-10-22 08:54:16,967 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:16,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444189495] [2019-10-22 08:54:16,967 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:16,967 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:16,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,070 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 08:54:17,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444189495] [2019-10-22 08:54:17,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:17,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:54:17,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537393976] [2019-10-22 08:54:17,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:54:17,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:17,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:54:17,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:54:17,072 INFO L87 Difference]: Start difference. First operand 131 states and 145 transitions. Second operand 7 states. [2019-10-22 08:54:17,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:17,517 INFO L93 Difference]: Finished difference Result 219 states and 242 transitions. [2019-10-22 08:54:17,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:54:17,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-22 08:54:17,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:17,519 INFO L225 Difference]: With dead ends: 219 [2019-10-22 08:54:17,519 INFO L226 Difference]: Without dead ends: 219 [2019-10-22 08:54:17,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:54:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-22 08:54:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 121. [2019-10-22 08:54:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-10-22 08:54:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 134 transitions. [2019-10-22 08:54:17,525 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 134 transitions. Word has length 15 [2019-10-22 08:54:17,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:17,525 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 134 transitions. [2019-10-22 08:54:17,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:54:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 134 transitions. [2019-10-22 08:54:17,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:54:17,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:17,526 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] [2019-10-22 08:54:17,527 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:17,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:17,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1361847797, now seen corresponding path program 1 times [2019-10-22 08:54:17,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:17,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249909489] [2019-10-22 08:54:17,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:17,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:17,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,559 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 08:54:17,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249909489] [2019-10-22 08:54:17,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:17,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:17,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739849633] [2019-10-22 08:54:17,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:17,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:17,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:17,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:17,561 INFO L87 Difference]: Start difference. First operand 121 states and 134 transitions. Second operand 4 states. [2019-10-22 08:54:17,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:17,686 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2019-10-22 08:54:17,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:17,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-22 08:54:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:17,688 INFO L225 Difference]: With dead ends: 173 [2019-10-22 08:54:17,688 INFO L226 Difference]: Without dead ends: 173 [2019-10-22 08:54:17,688 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 08:54:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-10-22 08:54:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2019-10-22 08:54:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-22 08:54:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 147 transitions. [2019-10-22 08:54:17,700 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 147 transitions. Word has length 22 [2019-10-22 08:54:17,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:17,700 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 147 transitions. [2019-10-22 08:54:17,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:17,701 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 147 transitions. [2019-10-22 08:54:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:54:17,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:17,701 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 08:54:17,702 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:17,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:17,702 INFO L82 PathProgramCache]: Analyzing trace with hash -2035988458, now seen corresponding path program 1 times [2019-10-22 08:54:17,702 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:17,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096919331] [2019-10-22 08:54:17,702 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:17,702 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:17,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,766 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 08:54:17,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096919331] [2019-10-22 08:54:17,766 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:17,766 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:17,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187130874] [2019-10-22 08:54:17,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:17,767 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:17,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:17,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:17,767 INFO L87 Difference]: Start difference. First operand 133 states and 147 transitions. Second operand 4 states. [2019-10-22 08:54:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:17,910 INFO L93 Difference]: Finished difference Result 133 states and 146 transitions. [2019-10-22 08:54:17,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:17,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-10-22 08:54:17,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:17,912 INFO L225 Difference]: With dead ends: 133 [2019-10-22 08:54:17,912 INFO L226 Difference]: Without dead ends: 133 [2019-10-22 08:54:17,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-22 08:54:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-22 08:54:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-22 08:54:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 146 transitions. [2019-10-22 08:54:17,916 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 146 transitions. Word has length 24 [2019-10-22 08:54:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:17,916 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 146 transitions. [2019-10-22 08:54:17,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 146 transitions. [2019-10-22 08:54:17,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:54:17,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:17,917 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 08:54:17,918 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:17,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:17,918 INFO L82 PathProgramCache]: Analyzing trace with hash -2035964976, now seen corresponding path program 1 times [2019-10-22 08:54:17,918 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:17,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006134415] [2019-10-22 08:54:17,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:17,919 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:17,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:17,953 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 08:54:17,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006134415] [2019-10-22 08:54:17,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:17,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:54:17,954 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178854496] [2019-10-22 08:54:17,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:17,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:17,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:17,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:17,955 INFO L87 Difference]: Start difference. First operand 133 states and 146 transitions. Second operand 5 states. [2019-10-22 08:54:18,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:18,111 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2019-10-22 08:54:18,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:18,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-22 08:54:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:18,112 INFO L225 Difference]: With dead ends: 166 [2019-10-22 08:54:18,112 INFO L226 Difference]: Without dead ends: 166 [2019-10-22 08:54:18,112 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:54:18,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-22 08:54:18,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 144. [2019-10-22 08:54:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-22 08:54:18,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 161 transitions. [2019-10-22 08:54:18,117 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 161 transitions. Word has length 24 [2019-10-22 08:54:18,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:18,117 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 161 transitions. [2019-10-22 08:54:18,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:18,117 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 161 transitions. [2019-10-22 08:54:18,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:54:18,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:18,118 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 08:54:18,118 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:18,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:18,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1921639418, now seen corresponding path program 1 times [2019-10-22 08:54:18,119 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:18,119 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430784623] [2019-10-22 08:54:18,119 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:18,119 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:18,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,189 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 08:54:18,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430784623] [2019-10-22 08:54:18,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:18,189 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:54:18,189 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539721283] [2019-10-22 08:54:18,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:54:18,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:18,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:54:18,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:54:18,190 INFO L87 Difference]: Start difference. First operand 144 states and 161 transitions. Second operand 7 states. [2019-10-22 08:54:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:18,444 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2019-10-22 08:54:18,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:54:18,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-10-22 08:54:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:18,446 INFO L225 Difference]: With dead ends: 142 [2019-10-22 08:54:18,446 INFO L226 Difference]: Without dead ends: 142 [2019-10-22 08:54:18,446 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:54:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-10-22 08:54:18,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2019-10-22 08:54:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-22 08:54:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2019-10-22 08:54:18,450 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 26 [2019-10-22 08:54:18,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:18,451 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2019-10-22 08:54:18,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:54:18,451 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2019-10-22 08:54:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:54:18,460 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:18,460 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 08:54:18,461 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:18,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:18,461 INFO L82 PathProgramCache]: Analyzing trace with hash -598320516, now seen corresponding path program 1 times [2019-10-22 08:54:18,461 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:18,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708904941] [2019-10-22 08:54:18,461 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:18,462 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:18,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,533 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 08:54:18,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708904941] [2019-10-22 08:54:18,534 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:18,534 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:18,534 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436019943] [2019-10-22 08:54:18,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:54:18,534 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:18,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:54:18,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:54:18,535 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand 5 states. [2019-10-22 08:54:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:18,728 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2019-10-22 08:54:18,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:54:18,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 08:54:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:18,729 INFO L225 Difference]: With dead ends: 138 [2019-10-22 08:54:18,730 INFO L226 Difference]: Without dead ends: 138 [2019-10-22 08:54:18,730 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:54:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-22 08:54:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-10-22 08:54:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-22 08:54:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2019-10-22 08:54:18,732 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 26 [2019-10-22 08:54:18,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:18,733 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2019-10-22 08:54:18,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:54:18,733 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2019-10-22 08:54:18,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:54:18,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:18,734 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:18,734 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:18,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:18,735 INFO L82 PathProgramCache]: Analyzing trace with hash -451797013, now seen corresponding path program 1 times [2019-10-22 08:54:18,735 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:18,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334630217] [2019-10-22 08:54:18,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:18,735 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:18,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:18,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334630217] [2019-10-22 08:54:18,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094407446] [2019-10-22 08:54:18,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 08:54:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:18,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-22 08:54:18,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:19,032 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-22 08:54:19,033 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:19,039 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:19,041 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-22 08:54:19,041 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:19,044 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:19,045 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:54:19,045 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-10-22 08:54:19,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:19,048 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:54:19,048 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2019-10-22 08:54:19,048 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189244950] [2019-10-22 08:54:19,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:54:19,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:19,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:54:19,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:54:19,049 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 10 states. [2019-10-22 08:54:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:19,399 INFO L93 Difference]: Finished difference Result 165 states and 181 transitions. [2019-10-22 08:54:19,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:54:19,404 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-10-22 08:54:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:19,404 INFO L225 Difference]: With dead ends: 165 [2019-10-22 08:54:19,404 INFO L226 Difference]: Without dead ends: 165 [2019-10-22 08:54:19,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:54:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-22 08:54:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2019-10-22 08:54:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-22 08:54:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 161 transitions. [2019-10-22 08:54:19,408 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 161 transitions. Word has length 29 [2019-10-22 08:54:19,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:19,409 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 161 transitions. [2019-10-22 08:54:19,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:54:19,409 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2019-10-22 08:54:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:54:19,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:19,410 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 08:54:19,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:19,610 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:19,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1120806669, now seen corresponding path program 1 times [2019-10-22 08:54:19,611 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:19,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264372382] [2019-10-22 08:54:19,611 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:19,611 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:19,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:19,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264372382] [2019-10-22 08:54:19,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915583534] [2019-10-22 08:54:19,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 08:54:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:19,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:54:19,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:19,811 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:54:19,811 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-10-22 08:54:19,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316131103] [2019-10-22 08:54:19,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:54:19,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:19,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:54:19,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:54:19,812 INFO L87 Difference]: Start difference. First operand 148 states and 161 transitions. Second operand 9 states. [2019-10-22 08:54:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:20,142 INFO L93 Difference]: Finished difference Result 158 states and 170 transitions. [2019-10-22 08:54:20,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:54:20,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2019-10-22 08:54:20,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:20,143 INFO L225 Difference]: With dead ends: 158 [2019-10-22 08:54:20,143 INFO L226 Difference]: Without dead ends: 139 [2019-10-22 08:54:20,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:54:20,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-10-22 08:54:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-10-22 08:54:20,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-22 08:54:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 151 transitions. [2019-10-22 08:54:20,146 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 151 transitions. Word has length 30 [2019-10-22 08:54:20,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:20,147 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 151 transitions. [2019-10-22 08:54:20,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:54:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 151 transitions. [2019-10-22 08:54:20,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:54:20,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:20,148 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:20,348 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:20,348 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:20,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:20,349 INFO L82 PathProgramCache]: Analyzing trace with hash -2125372333, now seen corresponding path program 1 times [2019-10-22 08:54:20,349 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:20,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364855557] [2019-10-22 08:54:20,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:20,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:20,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:20,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364855557] [2019-10-22 08:54:20,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:20,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:54:20,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166641052] [2019-10-22 08:54:20,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:20,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:20,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:20,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:20,386 INFO L87 Difference]: Start difference. First operand 139 states and 151 transitions. Second operand 4 states. [2019-10-22 08:54:20,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:20,545 INFO L93 Difference]: Finished difference Result 207 states and 225 transitions. [2019-10-22 08:54:20,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:54:20,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-10-22 08:54:20,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:20,546 INFO L225 Difference]: With dead ends: 207 [2019-10-22 08:54:20,546 INFO L226 Difference]: Without dead ends: 207 [2019-10-22 08:54:20,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 08:54:20,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2019-10-22 08:54:20,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 156. [2019-10-22 08:54:20,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-10-22 08:54:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 169 transitions. [2019-10-22 08:54:20,550 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 169 transitions. Word has length 35 [2019-10-22 08:54:20,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:20,550 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 169 transitions. [2019-10-22 08:54:20,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 169 transitions. [2019-10-22 08:54:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 08:54:20,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:20,551 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:20,552 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:20,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:20,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1832593597, now seen corresponding path program 1 times [2019-10-22 08:54:20,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:20,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706600245] [2019-10-22 08:54:20,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:20,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:20,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:20,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706600245] [2019-10-22 08:54:20,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708278369] [2019-10-22 08:54:20,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:20,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-22 08:54:20,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:20,864 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:20,864 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-10-22 08:54:20,865 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:20,888 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-10-22 08:54:20,889 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:54:20,889 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2019-10-22 08:54:20,914 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 08:54:20,914 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:20,921 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:20,921 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 08:54:20,922 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2019-10-22 08:54:21,005 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:21,005 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 36 treesize of output 51 [2019-10-22 08:54:21,006 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:21,021 INFO L567 ElimStorePlain]: treesize reduction 24, result has 54.7 percent of original size [2019-10-22 08:54:21,021 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:54:21,021 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:29 [2019-10-22 08:54:21,090 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-10-22 08:54:21,090 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 79 [2019-10-22 08:54:21,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:54:21,093 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:21,105 INFO L567 ElimStorePlain]: treesize reduction 32, result has 51.5 percent of original size [2019-10-22 08:54:21,105 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 08:54:21,105 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:34 [2019-10-22 08:54:21,171 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:21,172 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2019-10-22 08:54:21,173 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:21,188 INFO L567 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2019-10-22 08:54:21,189 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 08:54:21,189 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:15 [2019-10-22 08:54:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:21,249 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:54:21,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 24 [2019-10-22 08:54:21,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455158679] [2019-10-22 08:54:21,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-22 08:54:21,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:21,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-22 08:54:21,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2019-10-22 08:54:21,251 INFO L87 Difference]: Start difference. First operand 156 states and 169 transitions. Second operand 25 states. [2019-10-22 08:54:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:22,387 INFO L93 Difference]: Finished difference Result 225 states and 245 transitions. [2019-10-22 08:54:22,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-22 08:54:22,387 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 42 [2019-10-22 08:54:22,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:22,388 INFO L225 Difference]: With dead ends: 225 [2019-10-22 08:54:22,388 INFO L226 Difference]: Without dead ends: 225 [2019-10-22 08:54:22,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=368, Invalid=1272, Unknown=0, NotChecked=0, Total=1640 [2019-10-22 08:54:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-10-22 08:54:22,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 182. [2019-10-22 08:54:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-10-22 08:54:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 200 transitions. [2019-10-22 08:54:22,391 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 200 transitions. Word has length 42 [2019-10-22 08:54:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:22,391 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 200 transitions. [2019-10-22 08:54:22,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-22 08:54:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 200 transitions. [2019-10-22 08:54:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 08:54:22,391 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:22,393 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:22,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:22,594 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:22,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:22,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1832593596, now seen corresponding path program 1 times [2019-10-22 08:54:22,594 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:22,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667660147] [2019-10-22 08:54:22,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:22,595 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:22,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:22,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667660147] [2019-10-22 08:54:22,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821594067] [2019-10-22 08:54:22,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:22,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 34 conjunts are in the unsatisfiable core [2019-10-22 08:54:22,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:22,912 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_59|], 1=[|v_#valid_71|]} [2019-10-22 08:54:22,918 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-22 08:54:22,919 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:22,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:22,942 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:22,942 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-10-22 08:54:22,943 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:22,952 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:22,952 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:54:22,952 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-10-22 08:54:22,972 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 08:54:22,972 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:22,983 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:22,987 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 08:54:22,988 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:22,998 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:22,998 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 08:54:22,998 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:31 [2019-10-22 08:54:23,064 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:23,064 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 36 treesize of output 51 [2019-10-22 08:54:23,065 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,084 INFO L567 ElimStorePlain]: treesize reduction 24, result has 63.6 percent of original size [2019-10-22 08:54:23,087 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 0 case distinctions, treesize of input 19 treesize of output 18 [2019-10-22 08:54:23,087 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,094 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:23,094 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,094 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:38 [2019-10-22 08:54:23,147 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-10-22 08:54:23,147 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 105 [2019-10-22 08:54:23,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:54:23,149 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,177 INFO L567 ElimStorePlain]: treesize reduction 32, result has 70.9 percent of original size [2019-10-22 08:54:23,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:54:23,182 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 25 [2019-10-22 08:54:23,183 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,194 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:23,195 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 08:54:23,195 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:47 [2019-10-22 08:54:23,254 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:23,254 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2019-10-22 08:54:23,254 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,267 INFO L567 ElimStorePlain]: treesize reduction 12, result has 72.1 percent of original size [2019-10-22 08:54:23,276 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 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-22 08:54:23,277 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,282 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:54:23,282 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:54:23,282 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2019-10-22 08:54:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,320 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:54:23,320 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 20 [2019-10-22 08:54:23,320 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746190999] [2019-10-22 08:54:23,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-22 08:54:23,321 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-22 08:54:23,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2019-10-22 08:54:23,322 INFO L87 Difference]: Start difference. First operand 182 states and 200 transitions. Second operand 21 states. [2019-10-22 08:54:24,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:24,418 INFO L93 Difference]: Finished difference Result 218 states and 239 transitions. [2019-10-22 08:54:24,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-22 08:54:24,419 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 42 [2019-10-22 08:54:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:24,419 INFO L225 Difference]: With dead ends: 218 [2019-10-22 08:54:24,419 INFO L226 Difference]: Without dead ends: 218 [2019-10-22 08:54:24,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2019-10-22 08:54:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-10-22 08:54:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 186. [2019-10-22 08:54:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-10-22 08:54:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 203 transitions. [2019-10-22 08:54:24,424 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 203 transitions. Word has length 42 [2019-10-22 08:54:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:24,425 INFO L462 AbstractCegarLoop]: Abstraction has 186 states and 203 transitions. [2019-10-22 08:54:24,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-22 08:54:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 203 transitions. [2019-10-22 08:54:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 08:54:24,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:24,426 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:24,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:54:24,627 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr19REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION]=== [2019-10-22 08:54:24,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:24,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1998928410, now seen corresponding path program 1 times [2019-10-22 08:54:24,627 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:24,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746791087] [2019-10-22 08:54:24,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,627 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:24,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:24,647 ERROR L253 erpolLogProxyWrapper]: Interpolant 9 not inductive [2019-10-22 08:54:24,657 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:863) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:54:24,668 INFO L168 Benchmark]: Toolchain (without parser) took 11491.46 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 421.0 MB). Free memory was 937.9 MB in the beginning and 1.3 GB in the end (delta: -391.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:24,668 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:24,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -211.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:24,669 INFO L168 Benchmark]: Boogie Preprocessor took 73.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:24,669 INFO L168 Benchmark]: RCFGBuilder took 714.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:24,669 INFO L168 Benchmark]: TraceAbstraction took 10252.13 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 248.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -255.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:24,671 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 448.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -211.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.42 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 714.03 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: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10252.13 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 248.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -255.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:26,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:26,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:26,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:26,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:26,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:26,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:26,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:26,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:26,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:26,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:26,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:26,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:26,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:26,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:26,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:26,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:26,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:26,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:26,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:26,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:26,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:26,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:26,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:26,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:26,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:26,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:26,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:26,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:26,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:26,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:26,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:26,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:26,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:26,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:26,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:26,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:26,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:26,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:26,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:26,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:26,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:26,759 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:26,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:26,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:26,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:26,761 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:26,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:26,761 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:26,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:54:26,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:26,762 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:26,763 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:26,763 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:26,763 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:26,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:26,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:26,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:26,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:26,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:26,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:26,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:26,765 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:26,765 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:26,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:26,765 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_cf4f7678-4838-437d-9313-e8d843c74842/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 -> 7a8c56772773bb41a30a4208cc9fc6fce3f9d2e2 [2019-10-22 08:54:26,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:26,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:26,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:26,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:26,804 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:26,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/../../sv-benchmarks/c/forester-heap/sll-queue-1.i [2019-10-22 08:54:26,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/77dffe2b7/b6dbbcd9bf534a329226ab19c96d8f24/FLAG6cfa98518 [2019-10-22 08:54:27,286 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:27,286 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/sv-benchmarks/c/forester-heap/sll-queue-1.i [2019-10-22 08:54:27,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/77dffe2b7/b6dbbcd9bf534a329226ab19c96d8f24/FLAG6cfa98518 [2019-10-22 08:54:27,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/bin/uautomizer/data/77dffe2b7/b6dbbcd9bf534a329226ab19c96d8f24 [2019-10-22 08:54:27,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:27,662 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:54:27,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:27,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:27,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:27,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:27" (1/1) ... [2019-10-22 08:54:27,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0def74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:27, skipping insertion in model container [2019-10-22 08:54:27,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:27" (1/1) ... [2019-10-22 08:54:27,677 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:27,712 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:28,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:28,098 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:28,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:28,187 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:28,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28 WrapperNode [2019-10-22 08:54:28,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:28,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:28,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:28,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:28,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... [2019-10-22 08:54:28,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:28,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:28,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:28,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:28,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 08:54:28,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:54:28,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:28,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:54:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:54:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:54:28,305 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:54:28,306 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:54:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:54:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:54:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:54:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:54:28,307 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:54:28,308 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:54:28,309 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:54:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:54:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:54:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:54:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:54:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:54:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:54:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:54:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:54:28,314 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:54:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:54:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:54:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:54:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:54:28,315 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:54:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:54:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:54:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:54:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:54:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:54:28,316 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:54:28,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:54:28,318 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:54:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:54:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:54:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:54:28,319 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:54:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:54:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:54:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:54:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:54:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:54:28,320 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:54:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:54:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:54:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:54:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:54:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:54:28,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:54:28,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:29,107 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:29,107 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-10-22 08:54:29,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:29 BoogieIcfgContainer [2019-10-22 08:54:29,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:29,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:29,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:29,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:29,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:27" (1/3) ... [2019-10-22 08:54:29,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd30865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:29, skipping insertion in model container [2019-10-22 08:54:29,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:28" (2/3) ... [2019-10-22 08:54:29,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd30865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:29, skipping insertion in model container [2019-10-22 08:54:29,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:29" (3/3) ... [2019-10-22 08:54:29,119 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-queue-1.i [2019-10-22 08:54:29,133 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:29,143 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 56 error locations. [2019-10-22 08:54:29,155 INFO L249 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2019-10-22 08:54:29,169 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:29,170 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:54:29,170 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:29,170 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:29,170 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:29,170 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:29,170 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:29,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:29,194 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2019-10-22 08:54:29,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:54:29,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:29,206 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:29,208 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr55ENSURES_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION]=== [2019-10-22 08:54:29,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:29,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1764912395, now seen corresponding path program 1 times [2019-10-22 08:54:29,225 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:29,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1373721033] [2019-10-22 08:54:29,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf4f7678-4838-437d-9313-e8d843c74842/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 08:54:29,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:54:29,447 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:54:29,451 INFO L168 Benchmark]: Toolchain (without parser) took 1788.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -126.0 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:29,451 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:29,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -214.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:29,452 INFO L168 Benchmark]: Boogie Preprocessor took 61.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:29,453 INFO L168 Benchmark]: RCFGBuilder took 858.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:29,453 INFO L168 Benchmark]: TraceAbstraction took 339.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:29,456 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 525.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -214.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 858.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 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...