./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 3e0675069af96ce2b947856aad4bf6a2d556158b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 3e0675069af96ce2b947856aad4bf6a2d556158b ...................................................................................................................................................................................................................................................................................................................................................... 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 09:02:51,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:51,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:51,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:51,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:51,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:51,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:51,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:51,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:51,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:51,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:51,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:51,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:51,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:51,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:51,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:51,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:51,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:51,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:51,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:51,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:51,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:51,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:51,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:51,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:51,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:51,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:51,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:51,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:51,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:51,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:51,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:51,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:51,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:51,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:51,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:51,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:51,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:51,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:51,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:51,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:51,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:02:51,998 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:51,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:51,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:52,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:52,000 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:52,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:52,000 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:52,000 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:52,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:52,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:52,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:52,001 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:02:52,001 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:02:52,001 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:02:52,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:52,002 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:52,002 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:52,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:52,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:52,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:52,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:52,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:52,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:52,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:52,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:52,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:52,004 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_235da04a-28cc-499c-8724-d1d5f5047fbc/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 -> 3e0675069af96ce2b947856aad4bf6a2d556158b [2019-10-22 09:02:52,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:52,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:52,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:52,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:52,043 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:52,044 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i [2019-10-22 09:02:52,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/c08e9355e/d4bf08816f8a49b3aed8e1ddc76c1b4c/FLAG3490ccab2 [2019-10-22 09:02:52,526 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:52,527 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i [2019-10-22 09:02:52,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/c08e9355e/d4bf08816f8a49b3aed8e1ddc76c1b4c/FLAG3490ccab2 [2019-10-22 09:02:52,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/c08e9355e/d4bf08816f8a49b3aed8e1ddc76c1b4c [2019-10-22 09:02:52,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:52,881 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:02:52,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:52,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:52,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:52,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498807af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:52, skipping insertion in model container [2019-10-22 09:02:52,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:52" (1/1) ... [2019-10-22 09:02:52,895 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:52,933 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:53,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:53,278 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:53,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:53,379 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:53,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53 WrapperNode [2019-10-22 09:02:53,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:53,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:53,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:53,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:53,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... [2019-10-22 09:02:53,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:53,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:53,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:53,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:53,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:02:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:02:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:02:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:02:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:02:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:02:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:02:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:02:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:02:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:02:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:02:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:02:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:02:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:02:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:02:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:02:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:02:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:02:53,509 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:02:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:02:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:02:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:02:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:02:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:02:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:02:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:02:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:02:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:02:53,517 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:02:53,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:02:53,517 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:02:53,517 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:02:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:02:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:54,341 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:54,342 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-10-22 09:02:54,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:54 BoogieIcfgContainer [2019-10-22 09:02:54,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:54,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:54,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:54,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:54,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:52" (1/3) ... [2019-10-22 09:02:54,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4253258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:54, skipping insertion in model container [2019-10-22 09:02:54,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:53" (2/3) ... [2019-10-22 09:02:54,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4253258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:54, skipping insertion in model container [2019-10-22 09:02:54,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:54" (3/3) ... [2019-10-22 09:02:54,350 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-2.i [2019-10-22 09:02:54,358 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:54,366 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 73 error locations. [2019-10-22 09:02:54,373 INFO L249 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2019-10-22 09:02:54,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:54,388 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:02:54,388 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:54,388 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:54,388 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:54,388 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:54,388 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:54,388 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-10-22 09:02:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:02:54,418 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:54,419 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:54,421 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:54,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1834014549, now seen corresponding path program 1 times [2019-10-22 09:02:54,431 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:54,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991780491] [2019-10-22 09:02:54,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:54,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:54,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:54,595 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 09:02:54,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991780491] [2019-10-22 09:02:54,598 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:54,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:54,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907402689] [2019-10-22 09:02:54,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:54,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:54,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:54,621 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 4 states. [2019-10-22 09:02:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:55,012 INFO L93 Difference]: Finished difference Result 187 states and 194 transitions. [2019-10-22 09:02:55,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:55,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 09:02:55,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:55,026 INFO L225 Difference]: With dead ends: 187 [2019-10-22 09:02:55,026 INFO L226 Difference]: Without dead ends: 184 [2019-10-22 09:02:55,027 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 09:02:55,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-10-22 09:02:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 158. [2019-10-22 09:02:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 09:02:55,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 166 transitions. [2019-10-22 09:02:55,086 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 166 transitions. Word has length 7 [2019-10-22 09:02:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:55,086 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 166 transitions. [2019-10-22 09:02:55,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:55,087 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 166 transitions. [2019-10-22 09:02:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:02:55,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:55,087 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:55,088 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:55,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:55,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1834014548, now seen corresponding path program 1 times [2019-10-22 09:02:55,089 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:55,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899357487] [2019-10-22 09:02:55,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:55,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:55,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:55,175 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 09:02:55,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899357487] [2019-10-22 09:02:55,176 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:55,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:55,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724490404] [2019-10-22 09:02:55,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:55,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:55,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:55,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:55,180 INFO L87 Difference]: Start difference. First operand 158 states and 166 transitions. Second operand 4 states. [2019-10-22 09:02:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:55,564 INFO L93 Difference]: Finished difference Result 154 states and 161 transitions. [2019-10-22 09:02:55,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:55,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 09:02:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:55,567 INFO L225 Difference]: With dead ends: 154 [2019-10-22 09:02:55,567 INFO L226 Difference]: Without dead ends: 154 [2019-10-22 09:02:55,568 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 09:02:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-22 09:02:55,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-22 09:02:55,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-22 09:02:55,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 161 transitions. [2019-10-22 09:02:55,578 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 161 transitions. Word has length 7 [2019-10-22 09:02:55,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:55,578 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 161 transitions. [2019-10-22 09:02:55,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:55,578 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 161 transitions. [2019-10-22 09:02:55,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:02:55,579 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:55,579 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:55,580 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:55,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:55,580 INFO L82 PathProgramCache]: Analyzing trace with hash -533094097, now seen corresponding path program 1 times [2019-10-22 09:02:55,580 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:55,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603246156] [2019-10-22 09:02:55,581 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:55,581 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:55,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:55,655 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 09:02:55,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603246156] [2019-10-22 09:02:55,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:55,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:55,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986814478] [2019-10-22 09:02:55,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:55,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:55,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:55,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:55,658 INFO L87 Difference]: Start difference. First operand 154 states and 161 transitions. Second operand 4 states. [2019-10-22 09:02:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:55,961 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2019-10-22 09:02:55,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:55,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 09:02:55,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:55,962 INFO L225 Difference]: With dead ends: 150 [2019-10-22 09:02:55,963 INFO L226 Difference]: Without dead ends: 150 [2019-10-22 09:02:55,963 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 09:02:55,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-10-22 09:02:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-10-22 09:02:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-22 09:02:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2019-10-22 09:02:55,977 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 11 [2019-10-22 09:02:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:55,977 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2019-10-22 09:02:55,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2019-10-22 09:02:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:02:55,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:55,978 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:55,979 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:55,979 INFO L82 PathProgramCache]: Analyzing trace with hash -533094096, now seen corresponding path program 1 times [2019-10-22 09:02:55,979 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:55,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342351447] [2019-10-22 09:02:55,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:55,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:55,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:56,073 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 09:02:56,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342351447] [2019-10-22 09:02:56,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:56,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:56,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618351994] [2019-10-22 09:02:56,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:56,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:56,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:56,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:56,076 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 4 states. [2019-10-22 09:02:56,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:56,378 INFO L93 Difference]: Finished difference Result 165 states and 171 transitions. [2019-10-22 09:02:56,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:56,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 09:02:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:56,380 INFO L225 Difference]: With dead ends: 165 [2019-10-22 09:02:56,380 INFO L226 Difference]: Without dead ends: 165 [2019-10-22 09:02:56,380 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 09:02:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-22 09:02:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2019-10-22 09:02:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-10-22 09:02:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 160 transitions. [2019-10-22 09:02:56,389 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 160 transitions. Word has length 11 [2019-10-22 09:02:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:56,389 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 160 transitions. [2019-10-22 09:02:56,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 160 transitions. [2019-10-22 09:02:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:02:56,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:56,390 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:56,390 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2055157944, now seen corresponding path program 1 times [2019-10-22 09:02:56,391 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:56,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702534574] [2019-10-22 09:02:56,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:56,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:56,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:56,472 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 09:02:56,472 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702534574] [2019-10-22 09:02:56,473 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:56,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:56,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81210220] [2019-10-22 09:02:56,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:56,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:56,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:56,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:56,474 INFO L87 Difference]: Start difference. First operand 152 states and 160 transitions. Second operand 5 states. [2019-10-22 09:02:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:56,778 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2019-10-22 09:02:56,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:56,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-22 09:02:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:56,779 INFO L225 Difference]: With dead ends: 152 [2019-10-22 09:02:56,780 INFO L226 Difference]: Without dead ends: 152 [2019-10-22 09:02:56,780 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 09:02:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-22 09:02:56,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 139. [2019-10-22 09:02:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-22 09:02:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2019-10-22 09:02:56,790 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 17 [2019-10-22 09:02:56,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:56,790 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2019-10-22 09:02:56,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2019-10-22 09:02:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:02:56,791 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:56,791 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:56,792 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:56,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:56,792 INFO L82 PathProgramCache]: Analyzing trace with hash 2055157945, now seen corresponding path program 1 times [2019-10-22 09:02:56,792 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:56,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258895277] [2019-10-22 09:02:56,792 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:56,793 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:56,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:56,900 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 09:02:56,900 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258895277] [2019-10-22 09:02:56,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:56,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:56,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073883325] [2019-10-22 09:02:56,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:56,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:56,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:56,902 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand 7 states. [2019-10-22 09:02:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:57,334 INFO L93 Difference]: Finished difference Result 180 states and 190 transitions. [2019-10-22 09:02:57,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:57,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-22 09:02:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:57,336 INFO L225 Difference]: With dead ends: 180 [2019-10-22 09:02:57,336 INFO L226 Difference]: Without dead ends: 180 [2019-10-22 09:02:57,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-10-22 09:02:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 148. [2019-10-22 09:02:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-22 09:02:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 161 transitions. [2019-10-22 09:02:57,343 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 161 transitions. Word has length 17 [2019-10-22 09:02:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:57,343 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 161 transitions. [2019-10-22 09:02:57,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2019-10-22 09:02:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:57,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:57,344 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:57,344 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:57,345 INFO L82 PathProgramCache]: Analyzing trace with hash -678171781, now seen corresponding path program 1 times [2019-10-22 09:02:57,345 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:57,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426523917] [2019-10-22 09:02:57,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:57,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:57,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:57,435 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 09:02:57,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426523917] [2019-10-22 09:02:57,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:57,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:57,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88410131] [2019-10-22 09:02:57,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:57,436 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:57,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:57,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:57,436 INFO L87 Difference]: Start difference. First operand 148 states and 161 transitions. Second operand 6 states. [2019-10-22 09:02:57,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:57,762 INFO L93 Difference]: Finished difference Result 195 states and 213 transitions. [2019-10-22 09:02:57,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:57,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-10-22 09:02:57,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:57,763 INFO L225 Difference]: With dead ends: 195 [2019-10-22 09:02:57,764 INFO L226 Difference]: Without dead ends: 195 [2019-10-22 09:02:57,764 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:57,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-22 09:02:57,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 147. [2019-10-22 09:02:57,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 09:02:57,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 159 transitions. [2019-10-22 09:02:57,769 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 159 transitions. Word has length 19 [2019-10-22 09:02:57,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:57,770 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 159 transitions. [2019-10-22 09:02:57,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 159 transitions. [2019-10-22 09:02:57,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:57,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:57,770 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:57,771 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:57,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:57,771 INFO L82 PathProgramCache]: Analyzing trace with hash -678171780, now seen corresponding path program 1 times [2019-10-22 09:02:57,771 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:57,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626007244] [2019-10-22 09:02:57,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:57,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:57,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:57,859 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 09:02:57,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626007244] [2019-10-22 09:02:57,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:57,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:57,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227387372] [2019-10-22 09:02:57,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:57,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:57,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:57,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:57,862 INFO L87 Difference]: Start difference. First operand 147 states and 159 transitions. Second operand 6 states. [2019-10-22 09:02:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:58,283 INFO L93 Difference]: Finished difference Result 224 states and 243 transitions. [2019-10-22 09:02:58,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:58,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-10-22 09:02:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:58,284 INFO L225 Difference]: With dead ends: 224 [2019-10-22 09:02:58,285 INFO L226 Difference]: Without dead ends: 224 [2019-10-22 09:02:58,285 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-10-22 09:02:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 146. [2019-10-22 09:02:58,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-22 09:02:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 157 transitions. [2019-10-22 09:02:58,295 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 157 transitions. Word has length 19 [2019-10-22 09:02:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:58,295 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 157 transitions. [2019-10-22 09:02:58,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 157 transitions. [2019-10-22 09:02:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 09:02:58,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:58,296 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] [2019-10-22 09:02:58,296 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:58,297 INFO L82 PathProgramCache]: Analyzing trace with hash -864985795, now seen corresponding path program 1 times [2019-10-22 09:02:58,300 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:58,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075494321] [2019-10-22 09:02:58,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:58,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:58,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:58,443 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 09:02:58,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075494321] [2019-10-22 09:02:58,444 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:58,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 09:02:58,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537183423] [2019-10-22 09:02:58,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 09:02:58,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:58,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 09:02:58,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:02:58,448 INFO L87 Difference]: Start difference. First operand 146 states and 157 transitions. Second operand 10 states. [2019-10-22 09:02:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:59,088 INFO L93 Difference]: Finished difference Result 157 states and 169 transitions. [2019-10-22 09:02:59,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:02:59,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2019-10-22 09:02:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:59,089 INFO L225 Difference]: With dead ends: 157 [2019-10-22 09:02:59,089 INFO L226 Difference]: Without dead ends: 157 [2019-10-22 09:02:59,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:02:59,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-22 09:02:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2019-10-22 09:02:59,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-10-22 09:02:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 156 transitions. [2019-10-22 09:02:59,095 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 156 transitions. Word has length 23 [2019-10-22 09:02:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:59,097 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 156 transitions. [2019-10-22 09:02:59,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 09:02:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 156 transitions. [2019-10-22 09:02:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 09:02:59,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:59,098 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] [2019-10-22 09:02:59,098 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:02:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:59,099 INFO L82 PathProgramCache]: Analyzing trace with hash -864985794, now seen corresponding path program 1 times [2019-10-22 09:02:59,099 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:59,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146234041] [2019-10-22 09:02:59,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:59,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:59,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:59,276 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 09:02:59,276 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146234041] [2019-10-22 09:02:59,276 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:59,277 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-22 09:02:59,277 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243416273] [2019-10-22 09:02:59,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 09:02:59,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:59,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 09:02:59,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:59,278 INFO L87 Difference]: Start difference. First operand 145 states and 156 transitions. Second operand 11 states. [2019-10-22 09:03:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:00,227 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2019-10-22 09:03:00,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 09:03:00,228 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2019-10-22 09:03:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:00,229 INFO L225 Difference]: With dead ends: 168 [2019-10-22 09:03:00,229 INFO L226 Difference]: Without dead ends: 168 [2019-10-22 09:03:00,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-10-22 09:03:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-10-22 09:03:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 147. [2019-10-22 09:03:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 09:03:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2019-10-22 09:03:00,233 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 23 [2019-10-22 09:03:00,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:00,233 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2019-10-22 09:03:00,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 09:03:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2019-10-22 09:03:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 09:03:00,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:00,234 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 09:03:00,234 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:00,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1651615046, now seen corresponding path program 1 times [2019-10-22 09:03:00,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:00,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123801835] [2019-10-22 09:03:00,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:00,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:00,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:00,286 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 09:03:00,286 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123801835] [2019-10-22 09:03:00,286 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:00,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:03:00,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069107787] [2019-10-22 09:03:00,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:03:00,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:03:00,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:03:00,287 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 7 states. [2019-10-22 09:03:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:00,551 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2019-10-22 09:03:00,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:03:00,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-10-22 09:03:00,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:00,552 INFO L225 Difference]: With dead ends: 176 [2019-10-22 09:03:00,552 INFO L226 Difference]: Without dead ends: 176 [2019-10-22 09:03:00,552 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:03:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-10-22 09:03:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 147. [2019-10-22 09:03:00,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 09:03:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2019-10-22 09:03:00,556 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 26 [2019-10-22 09:03:00,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:00,557 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2019-10-22 09:03:00,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:03:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2019-10-22 09:03:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 09:03:00,557 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:00,558 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 09:03:00,558 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:00,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:00,558 INFO L82 PathProgramCache]: Analyzing trace with hash -89546133, now seen corresponding path program 1 times [2019-10-22 09:03:00,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:00,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111500097] [2019-10-22 09:03:00,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:00,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:00,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:00,646 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 09:03:00,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111500097] [2019-10-22 09:03:00,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908198789] [2019-10-22 09:03:00,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:03:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:00,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-22 09:03:00,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:00,814 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 09:03:00,815 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,821 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,825 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 09:03:00,825 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,830 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,830 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,830 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-10-22 09:03:00,844 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 0 case distinctions, treesize of input 26 treesize of output 21 [2019-10-22 09:03:00,847 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,850 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,854 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,855 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2019-10-22 09:03:00,856 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,861 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,862 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,876 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,881 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 0 case distinctions, treesize of input 26 treesize of output 21 [2019-10-22 09:03:00,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,891 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2019-10-22 09:03:00,891 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,895 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,895 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,901 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,901 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:51, output treesize:33 [2019-10-22 09:03:00,927 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,929 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,930 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-10-22 09:03:00,931 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,943 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,948 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,949 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,950 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-10-22 09:03:00,951 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,959 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:00,960 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,960 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:33 [2019-10-22 09:03:00,988 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:00,989 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 24 treesize of output 10 [2019-10-22 09:03:00,989 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:00,997 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:01,001 INFO L341 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2019-10-22 09:03:01,001 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2019-10-22 09:03:01,002 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:01,006 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:01,006 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 09:03:01,006 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2019-10-22 09:03:01,012 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 09:03:01,012 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:03:01,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-10-22 09:03:01,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445377310] [2019-10-22 09:03:01,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:03:01,013 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:01,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:03:01,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:03:01,014 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 9 states. [2019-10-22 09:03:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:01,629 INFO L93 Difference]: Finished difference Result 210 states and 223 transitions. [2019-10-22 09:03:01,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 09:03:01,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-10-22 09:03:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:01,630 INFO L225 Difference]: With dead ends: 210 [2019-10-22 09:03:01,631 INFO L226 Difference]: Without dead ends: 210 [2019-10-22 09:03:01,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:03:01,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2019-10-22 09:03:01,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 161. [2019-10-22 09:03:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-10-22 09:03:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 173 transitions. [2019-10-22 09:03:01,635 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 173 transitions. Word has length 29 [2019-10-22 09:03:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:01,636 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 173 transitions. [2019-10-22 09:03:01,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:03:01,636 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 173 transitions. [2019-10-22 09:03:01,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:03:01,637 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:01,637 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 09:03:01,837 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:01,838 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:01,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:01,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1674558588, now seen corresponding path program 1 times [2019-10-22 09:03:01,838 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:01,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459664861] [2019-10-22 09:03:01,838 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:01,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:01,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:01,906 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 09:03:01,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459664861] [2019-10-22 09:03:01,907 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:01,907 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:03:01,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479601367] [2019-10-22 09:03:01,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:03:01,907 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:01,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:03:01,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:03:01,908 INFO L87 Difference]: Start difference. First operand 161 states and 173 transitions. Second operand 6 states. [2019-10-22 09:03:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:02,268 INFO L93 Difference]: Finished difference Result 230 states and 249 transitions. [2019-10-22 09:03:02,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:03:02,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 09:03:02,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:02,270 INFO L225 Difference]: With dead ends: 230 [2019-10-22 09:03:02,270 INFO L226 Difference]: Without dead ends: 230 [2019-10-22 09:03:02,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:03:02,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-10-22 09:03:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 160. [2019-10-22 09:03:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-22 09:03:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 172 transitions. [2019-10-22 09:03:02,272 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 172 transitions. Word has length 30 [2019-10-22 09:03:02,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:02,273 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 172 transitions. [2019-10-22 09:03:02,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:03:02,273 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 172 transitions. [2019-10-22 09:03:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:03:02,274 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:02,275 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 09:03:02,275 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:02,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:02,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1674558589, now seen corresponding path program 1 times [2019-10-22 09:03:02,275 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:02,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161163590] [2019-10-22 09:03:02,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,276 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:02,345 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 09:03:02,345 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161163590] [2019-10-22 09:03:02,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:02,345 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:03:02,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776998449] [2019-10-22 09:03:02,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:03:02,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:02,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:03:02,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:03:02,347 INFO L87 Difference]: Start difference. First operand 160 states and 172 transitions. Second operand 6 states. [2019-10-22 09:03:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:02,842 INFO L93 Difference]: Finished difference Result 259 states and 280 transitions. [2019-10-22 09:03:02,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:03:02,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 09:03:02,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:02,848 INFO L225 Difference]: With dead ends: 259 [2019-10-22 09:03:02,848 INFO L226 Difference]: Without dead ends: 259 [2019-10-22 09:03:02,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:03:02,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2019-10-22 09:03:02,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 159. [2019-10-22 09:03:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 09:03:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 171 transitions. [2019-10-22 09:03:02,867 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 171 transitions. Word has length 30 [2019-10-22 09:03:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:02,868 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 171 transitions. [2019-10-22 09:03:02,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:03:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 171 transitions. [2019-10-22 09:03:02,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:03:02,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:02,869 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 09:03:02,869 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:02,869 INFO L82 PathProgramCache]: Analyzing trace with hash 334803469, now seen corresponding path program 1 times [2019-10-22 09:03:02,870 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:02,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063530186] [2019-10-22 09:03:02,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:02,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:02,974 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 09:03:02,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063530186] [2019-10-22 09:03:02,975 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:02,975 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:03:02,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584360963] [2019-10-22 09:03:02,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:03:02,976 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:02,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:03:02,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:03:02,976 INFO L87 Difference]: Start difference. First operand 159 states and 171 transitions. Second operand 6 states. [2019-10-22 09:03:03,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:03,248 INFO L93 Difference]: Finished difference Result 162 states and 172 transitions. [2019-10-22 09:03:03,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:03:03,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 09:03:03,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:03,250 INFO L225 Difference]: With dead ends: 162 [2019-10-22 09:03:03,250 INFO L226 Difference]: Without dead ends: 162 [2019-10-22 09:03:03,250 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:03:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-10-22 09:03:03,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2019-10-22 09:03:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 09:03:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2019-10-22 09:03:03,254 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 30 [2019-10-22 09:03:03,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:03,255 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2019-10-22 09:03:03,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:03:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2019-10-22 09:03:03,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 09:03:03,256 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:03,256 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:03,256 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:03,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:03,257 INFO L82 PathProgramCache]: Analyzing trace with hash -154482584, now seen corresponding path program 1 times [2019-10-22 09:03:03,257 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:03,257 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652803616] [2019-10-22 09:03:03,257 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,258 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:03,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652803616] [2019-10-22 09:03:03,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:03,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:03:03,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171677219] [2019-10-22 09:03:03,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:03:03,330 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:03,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:03:03,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:03:03,331 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 7 states. [2019-10-22 09:03:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:03,636 INFO L93 Difference]: Finished difference Result 172 states and 180 transitions. [2019-10-22 09:03:03,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:03:03,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-10-22 09:03:03,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:03,637 INFO L225 Difference]: With dead ends: 172 [2019-10-22 09:03:03,637 INFO L226 Difference]: Without dead ends: 172 [2019-10-22 09:03:03,638 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:03:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-10-22 09:03:03,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 155. [2019-10-22 09:03:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-22 09:03:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2019-10-22 09:03:03,640 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 31 [2019-10-22 09:03:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:03,640 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2019-10-22 09:03:03,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:03:03,640 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2019-10-22 09:03:03,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 09:03:03,641 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:03,644 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:03,644 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:03,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:03,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1148771646, now seen corresponding path program 1 times [2019-10-22 09:03:03,645 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:03,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528576580] [2019-10-22 09:03:03,645 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,645 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:03,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:03,807 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 09:03:03,808 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528576580] [2019-10-22 09:03:03,808 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:03,808 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-22 09:03:03,808 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825077224] [2019-10-22 09:03:03,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-22 09:03:03,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:03,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-22 09:03:03,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:03:03,810 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand 13 states. [2019-10-22 09:03:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:04,389 INFO L93 Difference]: Finished difference Result 154 states and 162 transitions. [2019-10-22 09:03:04,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 09:03:04,390 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34 [2019-10-22 09:03:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:04,390 INFO L225 Difference]: With dead ends: 154 [2019-10-22 09:03:04,391 INFO L226 Difference]: Without dead ends: 154 [2019-10-22 09:03:04,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2019-10-22 09:03:04,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-22 09:03:04,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-10-22 09:03:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-22 09:03:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2019-10-22 09:03:04,395 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 34 [2019-10-22 09:03:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:04,395 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 162 transitions. [2019-10-22 09:03:04,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-22 09:03:04,395 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 162 transitions. [2019-10-22 09:03:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 09:03:04,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:04,396 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:04,397 INFO L410 AbstractCegarLoop]: === Iteration 18 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:04,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1148771647, now seen corresponding path program 1 times [2019-10-22 09:03:04,397 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,397 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928229424] [2019-10-22 09:03:04,397 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,398 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:04,587 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 09:03:04,587 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928229424] [2019-10-22 09:03:04,587 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:04,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-22 09:03:04,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655494171] [2019-10-22 09:03:04,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-22 09:03:04,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:04,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-22 09:03:04,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-10-22 09:03:04,588 INFO L87 Difference]: Start difference. First operand 154 states and 162 transitions. Second operand 14 states. [2019-10-22 09:03:05,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:05,381 INFO L93 Difference]: Finished difference Result 149 states and 157 transitions. [2019-10-22 09:03:05,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 09:03:05,381 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2019-10-22 09:03:05,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:05,381 INFO L225 Difference]: With dead ends: 149 [2019-10-22 09:03:05,382 INFO L226 Difference]: Without dead ends: 149 [2019-10-22 09:03:05,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2019-10-22 09:03:05,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-10-22 09:03:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2019-10-22 09:03:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-22 09:03:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 139 transitions. [2019-10-22 09:03:05,385 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 139 transitions. Word has length 34 [2019-10-22 09:03:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:05,385 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 139 transitions. [2019-10-22 09:03:05,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-22 09:03:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 139 transitions. [2019-10-22 09:03:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:03:05,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:05,386 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:05,386 INFO L410 AbstractCegarLoop]: === Iteration 19 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:05,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:05,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1466182222, now seen corresponding path program 1 times [2019-10-22 09:03:05,387 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:05,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997399983] [2019-10-22 09:03:05,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:05,387 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:05,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,468 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 09:03:05,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997399983] [2019-10-22 09:03:05,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263020145] [2019-10-22 09:03:05,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:03:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:03:05,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:05,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:03:05,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2019-10-22 09:03:05,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489485512] [2019-10-22 09:03:05,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:03:05,597 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:05,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:03:05,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:03:05,598 INFO L87 Difference]: Start difference. First operand 132 states and 139 transitions. Second operand 3 states. [2019-10-22 09:03:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:05,671 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2019-10-22 09:03:05,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:03:05,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-10-22 09:03:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:05,672 INFO L225 Difference]: With dead ends: 134 [2019-10-22 09:03:05,672 INFO L226 Difference]: Without dead ends: 134 [2019-10-22 09:03:05,673 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:03:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-22 09:03:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-22 09:03:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-22 09:03:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 141 transitions. [2019-10-22 09:03:05,676 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 141 transitions. Word has length 35 [2019-10-22 09:03:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:05,676 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 141 transitions. [2019-10-22 09:03:05,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:03:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 141 transitions. [2019-10-22 09:03:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 09:03:05,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:05,678 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:05,878 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:05,878 INFO L410 AbstractCegarLoop]: === Iteration 20 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:05,879 INFO L82 PathProgramCache]: Analyzing trace with hash -251833035, now seen corresponding path program 1 times [2019-10-22 09:03:05,879 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:05,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064009095] [2019-10-22 09:03:05,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:05,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:05,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,981 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 09:03:05,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064009095] [2019-10-22 09:03:05,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997706488] [2019-10-22 09:03:05,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:03:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:06,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 09:03:06,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:06,100 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 13 treesize of output 9 [2019-10-22 09:03:06,100 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,105 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,105 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,105 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-10-22 09:03:06,112 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 19 treesize of output 7 [2019-10-22 09:03:06,112 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,114 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,114 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,115 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2019-10-22 09:03:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:06,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:03:06,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 10 [2019-10-22 09:03:06,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326000563] [2019-10-22 09:03:06,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:03:06,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:06,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:03:06,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:03:06,131 INFO L87 Difference]: Start difference. First operand 134 states and 141 transitions. Second operand 4 states. [2019-10-22 09:03:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:06,236 INFO L93 Difference]: Finished difference Result 143 states and 150 transitions. [2019-10-22 09:03:06,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:03:06,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-22 09:03:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:06,238 INFO L225 Difference]: With dead ends: 143 [2019-10-22 09:03:06,238 INFO L226 Difference]: Without dead ends: 143 [2019-10-22 09:03:06,238 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:03:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-10-22 09:03:06,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2019-10-22 09:03:06,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-22 09:03:06,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2019-10-22 09:03:06,242 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 37 [2019-10-22 09:03:06,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:06,243 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2019-10-22 09:03:06,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:03:06,244 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2019-10-22 09:03:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 09:03:06,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:06,244 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] [2019-10-22 09:03:06,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:06,447 INFO L410 AbstractCegarLoop]: === Iteration 21 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:06,447 INFO L82 PathProgramCache]: Analyzing trace with hash -828688271, now seen corresponding path program 1 times [2019-10-22 09:03:06,447 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:06,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183947621] [2019-10-22 09:03:06,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:06,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:06,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:06,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183947621] [2019-10-22 09:03:06,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047304503] [2019-10-22 09:03:06,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:03:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:06,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-22 09:03:06,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:06,731 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 09:03:06,731 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,742 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,742 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,742 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-10-22 09:03:06,764 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:06,765 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 21 treesize of output 20 [2019-10-22 09:03:06,766 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,776 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,777 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,777 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2019-10-22 09:03:06,801 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_46|], 6=[|v_#memory_$Pointer$.base_48|]} [2019-10-22 09:03:06,806 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 19 treesize of output 1 [2019-10-22 09:03:06,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,818 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,824 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:06,825 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:06,827 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:06,828 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,828 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2019-10-22 09:03:06,829 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,836 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,836 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,837 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:20 [2019-10-22 09:03:06,919 INFO L392 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|], 2=[|#memory_$Pointer$.base|]} [2019-10-22 09:03:06,922 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 09:03:06,922 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,928 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:06,932 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,932 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2019-10-22 09:03:06,932 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:06,936 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:06,936 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 09:03:06,936 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:10 [2019-10-22 09:03:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:06,965 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:03:06,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 16 [2019-10-22 09:03:06,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084322495] [2019-10-22 09:03:06,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-22 09:03:06,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:06,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-22 09:03:06,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:03:06,966 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand 16 states. [2019-10-22 09:03:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:07,578 INFO L93 Difference]: Finished difference Result 151 states and 157 transitions. [2019-10-22 09:03:07,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 09:03:07,578 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 38 [2019-10-22 09:03:07,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:07,579 INFO L225 Difference]: With dead ends: 151 [2019-10-22 09:03:07,579 INFO L226 Difference]: Without dead ends: 151 [2019-10-22 09:03:07,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2019-10-22 09:03:07,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-10-22 09:03:07,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2019-10-22 09:03:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-10-22 09:03:07,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 150 transitions. [2019-10-22 09:03:07,582 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 150 transitions. Word has length 38 [2019-10-22 09:03:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:07,582 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 150 transitions. [2019-10-22 09:03:07,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-22 09:03:07,582 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 150 transitions. [2019-10-22 09:03:07,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 09:03:07,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:07,582 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:07,783 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:07,783 INFO L410 AbstractCegarLoop]: === Iteration 22 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:07,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash 80467042, now seen corresponding path program 1 times [2019-10-22 09:03:07,784 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:07,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483089370] [2019-10-22 09:03:07,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:07,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:07,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 09:03:07,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483089370] [2019-10-22 09:03:07,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:07,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:03:07,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252374943] [2019-10-22 09:03:07,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:03:07,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:07,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:03:07,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:03:07,826 INFO L87 Difference]: Start difference. First operand 143 states and 150 transitions. Second operand 4 states. [2019-10-22 09:03:07,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:07,956 INFO L93 Difference]: Finished difference Result 142 states and 149 transitions. [2019-10-22 09:03:07,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:03:07,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2019-10-22 09:03:07,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:07,958 INFO L225 Difference]: With dead ends: 142 [2019-10-22 09:03:07,958 INFO L226 Difference]: Without dead ends: 142 [2019-10-22 09:03:07,958 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 09:03:07,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-10-22 09:03:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-10-22 09:03:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-10-22 09:03:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 149 transitions. [2019-10-22 09:03:07,961 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 149 transitions. Word has length 39 [2019-10-22 09:03:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:07,962 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 149 transitions. [2019-10-22 09:03:07,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:03:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 149 transitions. [2019-10-22 09:03:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 09:03:07,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:07,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:07,963 INFO L410 AbstractCegarLoop]: === Iteration 23 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:07,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1800488674, now seen corresponding path program 1 times [2019-10-22 09:03:07,963 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:07,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286837360] [2019-10-22 09:03:07,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:07,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:07,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:08,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286837360] [2019-10-22 09:03:08,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092710659] [2019-10-22 09:03:08,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:08,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 09:03:08,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:08,187 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:08,187 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-10-22 09:03:08,188 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:08,200 INFO L567 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2019-10-22 09:03:08,200 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:08,201 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2019-10-22 09:03:08,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:08,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:08,290 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 24 treesize of output 24 [2019-10-22 09:03:08,291 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:08,306 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:08,306 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 23 treesize of output 45 [2019-10-22 09:03:08,307 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:08,339 INFO L567 ElimStorePlain]: treesize reduction 23, result has 54.0 percent of original size [2019-10-22 09:03:08,340 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-10-22 09:03:08,340 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:24 [2019-10-22 09:03:08,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:08,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:08,397 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:03:08,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2019-10-22 09:03:08,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921474018] [2019-10-22 09:03:08,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-22 09:03:08,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:08,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-22 09:03:08,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:03:08,398 INFO L87 Difference]: Start difference. First operand 142 states and 149 transitions. Second operand 15 states. [2019-10-22 09:03:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:09,135 INFO L93 Difference]: Finished difference Result 188 states and 197 transitions. [2019-10-22 09:03:09,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 09:03:09,137 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 40 [2019-10-22 09:03:09,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:09,162 INFO L225 Difference]: With dead ends: 188 [2019-10-22 09:03:09,162 INFO L226 Difference]: Without dead ends: 188 [2019-10-22 09:03:09,162 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2019-10-22 09:03:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-22 09:03:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 147. [2019-10-22 09:03:09,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 09:03:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 155 transitions. [2019-10-22 09:03:09,178 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 155 transitions. Word has length 40 [2019-10-22 09:03:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:09,179 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 155 transitions. [2019-10-22 09:03:09,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-22 09:03:09,179 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 155 transitions. [2019-10-22 09:03:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 09:03:09,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:09,179 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:09,380 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:09,380 INFO L410 AbstractCegarLoop]: === Iteration 24 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:09,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:09,381 INFO L82 PathProgramCache]: Analyzing trace with hash 19426277, now seen corresponding path program 1 times [2019-10-22 09:03:09,381 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:09,381 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125196443] [2019-10-22 09:03:09,381 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:09,381 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:09,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:09,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125196443] [2019-10-22 09:03:09,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747191013] [2019-10-22 09:03:09,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:09,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-22 09:03:09,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:03:09,910 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:03:09,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-10-22 09:03:09,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823766259] [2019-10-22 09:03:09,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-22 09:03:09,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:09,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-22 09:03:09,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:03:09,911 INFO L87 Difference]: Start difference. First operand 147 states and 155 transitions. Second operand 16 states. [2019-10-22 09:03:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:10,491 INFO L93 Difference]: Finished difference Result 151 states and 158 transitions. [2019-10-22 09:03:10,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:03:10,491 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 41 [2019-10-22 09:03:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:10,492 INFO L225 Difference]: With dead ends: 151 [2019-10-22 09:03:10,492 INFO L226 Difference]: Without dead ends: 126 [2019-10-22 09:03:10,493 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2019-10-22 09:03:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-22 09:03:10,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-22 09:03:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-22 09:03:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 133 transitions. [2019-10-22 09:03:10,495 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 133 transitions. Word has length 41 [2019-10-22 09:03:10,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:10,496 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 133 transitions. [2019-10-22 09:03:10,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-22 09:03:10,496 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 133 transitions. [2019-10-22 09:03:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 09:03:10,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:10,497 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, 1, 1] [2019-10-22 09:03:10,697 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:10,697 INFO L410 AbstractCegarLoop]: === Iteration 25 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:10,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:10,698 INFO L82 PathProgramCache]: Analyzing trace with hash -311646077, now seen corresponding path program 1 times [2019-10-22 09:03:10,698 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:10,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264480823] [2019-10-22 09:03:10,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:10,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:10,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:10,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264480823] [2019-10-22 09:03:10,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778709618] [2019-10-22 09:03:10,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:10,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 51 conjunts are in the unsatisfiable core [2019-10-22 09:03:10,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:11,079 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,079 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 09:03:11,080 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,120 INFO L567 ElimStorePlain]: treesize reduction 14, result has 68.2 percent of original size [2019-10-22 09:03:11,120 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,120 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2019-10-22 09:03:11,166 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 09:03:11,166 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,184 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,189 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 09:03:11,189 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,206 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,206 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 09:03:11,207 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:42 [2019-10-22 09:03:11,279 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 29 treesize of output 24 [2019-10-22 09:03:11,280 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,297 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,316 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,316 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 66 [2019-10-22 09:03:11,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,318 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-22 09:03:11,354 INFO L567 ElimStorePlain]: treesize reduction 48, result has 59.0 percent of original size [2019-10-22 09:03:11,355 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 09:03:11,355 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:84, output treesize:68 [2019-10-22 09:03:11,432 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 28 treesize of output 10 [2019-10-22 09:03:11,433 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,447 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,448 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 09:03:11,448 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:69, output treesize:45 [2019-10-22 09:03:11,571 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:11,571 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 42 treesize of output 99 [2019-10-22 09:03:11,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:03:11,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:03:11,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,584 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:03:11,640 INFO L567 ElimStorePlain]: treesize reduction 46, result has 57.0 percent of original size [2019-10-22 09:03:11,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,645 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:03:11,645 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:61 [2019-10-22 09:03:11,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:11,794 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:11,811 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 57 treesize of output 44 [2019-10-22 09:03:11,811 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,825 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:11,913 INFO L341 Elim1Store]: treesize reduction 28, result has 67.4 percent of original size [2019-10-22 09:03:11,914 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 104 [2019-10-22 09:03:11,915 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:11,924 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:11,927 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 62 treesize of output 49 [2019-10-22 09:03:11,928 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:12,063 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-10-22 09:03:12,063 INFO L567 ElimStorePlain]: treesize reduction 76, result has 63.8 percent of original size [2019-10-22 09:03:12,064 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2019-10-22 09:03:12,065 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:191, output treesize:134 [2019-10-22 09:03:12,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:03:12,586 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_8], 1=[|#memory_$Pointer$.offset|, v_prenex_4, v_prenex_5], 2=[v_prenex_7], 5=[|#memory_$Pointer$.base|]} [2019-10-22 09:03:12,592 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 82 treesize of output 62 [2019-10-22 09:03:12,593 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:12,645 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,660 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,660 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2019-10-22 09:03:12,661 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:12,710 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,720 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,721 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 62 treesize of output 49 [2019-10-22 09:03:12,721 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:12,807 INFO L567 ElimStorePlain]: treesize reduction 8, result has 95.0 percent of original size [2019-10-22 09:03:12,811 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 32 treesize of output 24 [2019-10-22 09:03:12,811 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:12,840 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,851 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,851 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 59 treesize of output 44 [2019-10-22 09:03:12,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,853 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:03:12,904 INFO L567 ElimStorePlain]: treesize reduction 14, result has 88.1 percent of original size [2019-10-22 09:03:12,918 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:12,918 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 74 [2019-10-22 09:03:12,919 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:12,985 INFO L567 ElimStorePlain]: treesize reduction 14, result has 86.7 percent of original size [2019-10-22 09:03:12,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,994 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2019-10-22 09:03:12,995 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:212, output treesize:91 [2019-10-22 09:03:12,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,996 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,996 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:12,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:13,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:13,213 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:03:13,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 30 [2019-10-22 09:03:13,213 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14905881] [2019-10-22 09:03:13,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-22 09:03:13,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:13,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-22 09:03:13,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2019-10-22 09:03:13,214 INFO L87 Difference]: Start difference. First operand 126 states and 133 transitions. Second operand 31 states. [2019-10-22 09:03:13,917 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2019-10-22 09:03:14,330 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2019-10-22 09:03:14,684 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-10-22 09:03:15,209 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-10-22 09:03:15,862 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-10-22 09:03:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:16,298 INFO L93 Difference]: Finished difference Result 215 states and 229 transitions. [2019-10-22 09:03:16,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-10-22 09:03:16,299 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 49 [2019-10-22 09:03:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:03:16,300 INFO L225 Difference]: With dead ends: 215 [2019-10-22 09:03:16,300 INFO L226 Difference]: Without dead ends: 215 [2019-10-22 09:03:16,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=571, Invalid=2185, Unknown=0, NotChecked=0, Total=2756 [2019-10-22 09:03:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-10-22 09:03:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 159. [2019-10-22 09:03:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-10-22 09:03:16,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2019-10-22 09:03:16,304 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 49 [2019-10-22 09:03:16,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:03:16,305 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2019-10-22 09:03:16,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-22 09:03:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2019-10-22 09:03:16,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 09:03:16,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:16,306 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, 1, 1] [2019-10-22 09:03:16,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:16,507 INFO L410 AbstractCegarLoop]: === Iteration 26 === [mainErr43REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr60REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr53REQUIRES_VIOLATION, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION]=== [2019-10-22 09:03:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:16,507 INFO L82 PathProgramCache]: Analyzing trace with hash -311646076, now seen corresponding path program 1 times [2019-10-22 09:03:16,507 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:16,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402939599] [2019-10-22 09:03:16,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:16,507 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:16,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:16,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402939599] [2019-10-22 09:03:16,802 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191547201] [2019-10-22 09:03:16,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:16,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 54 conjunts are in the unsatisfiable core [2019-10-22 09:03:16,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:17,043 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_71|], 1=[|v_#valid_96|]} [2019-10-22 09:03:17,047 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 09:03:17,047 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,061 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,069 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,069 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 09:03:17,070 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,081 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,082 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,082 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2019-10-22 09:03:17,124 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 09:03:17,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,140 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,145 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 09:03:17,145 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,159 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,160 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 09:03:17,160 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:37 [2019-10-22 09:03:17,259 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 29 treesize of output 24 [2019-10-22 09:03:17,260 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,281 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,304 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,304 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 66 [2019-10-22 09:03:17,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,306 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-22 09:03:17,347 INFO L567 ElimStorePlain]: treesize reduction 48, result has 57.1 percent of original size [2019-10-22 09:03:17,348 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 09:03:17,348 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:63 [2019-10-22 09:03:17,499 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,499 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 103 [2019-10-22 09:03:17,500 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,540 INFO L567 ElimStorePlain]: treesize reduction 66, result has 54.2 percent of original size [2019-10-22 09:03:17,566 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,566 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 55 treesize of output 108 [2019-10-22 09:03:17,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:03:17,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:03:17,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,576 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:03:17,632 INFO L567 ElimStorePlain]: treesize reduction 46, result has 63.2 percent of original size [2019-10-22 09:03:17,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,635 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 09:03:17,635 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:86, output treesize:79 [2019-10-22 09:03:17,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:17,798 INFO L392 ElimStorePlain]: Different costs {20=[|v_#memory_$Pointer$.base_56|], 30=[|v_#memory_$Pointer$.offset_52|]} [2019-10-22 09:03:17,812 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:17,826 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 99 treesize of output 86 [2019-10-22 09:03:17,826 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:17,846 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:17,846 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 87 [2019-10-22 09:03:17,847 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:17,853 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:17,900 INFO L341 Elim1Store]: treesize reduction 28, result has 67.4 percent of original size [2019-10-22 09:03:17,901 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 141 [2019-10-22 09:03:17,901 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:18,048 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-10-22 09:03:18,048 INFO L567 ElimStorePlain]: treesize reduction 98, result has 70.7 percent of original size [2019-10-22 09:03:18,052 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:18,058 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 70 treesize of output 53 [2019-10-22 09:03:18,058 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:18,065 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:18,107 INFO L341 Elim1Store]: treesize reduction 36, result has 60.9 percent of original size [2019-10-22 09:03:18,107 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 125 [2019-10-22 09:03:18,108 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:18,116 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 09:03:18,119 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 73 treesize of output 60 [2019-10-22 09:03:18,119 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:18,211 INFO L567 ElimStorePlain]: treesize reduction 54, result has 76.5 percent of original size [2019-10-22 09:03:18,212 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2019-10-22 09:03:18,212 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:316, output treesize:176 [2019-10-22 09:03:18,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,653 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-10-22 09:03:18,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 09:03:18,954 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:18,954 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 75 treesize of output 62 [2019-10-22 09:03:18,954 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:18,983 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:18,983 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 91 [2019-10-22 09:03:18,984 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:18,996 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:03:18,996 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 90 treesize of output 63 [2019-10-22 09:03:18,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:03:18,998 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 09:03:19,115 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-10-22 09:03:19,116 INFO L567 ElimStorePlain]: treesize reduction 40, result has 78.9 percent of original size [2019-10-22 09:03:19,121 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 41 treesize of output 25 [2019-10-22 09:03:19,121 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:19,127 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 43 treesize of output 25 [2019-10-22 09:03:19,127 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-10-22 09:03:19,328 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:03:19,329 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-22 09:03:19,333 INFO L168 Benchmark]: Toolchain (without parser) took 26452.58 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 448.8 MB). Free memory was 943.2 MB in the beginning and 1.0 GB in the end (delta: -57.8 MB). Peak memory consumption was 391.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,334 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:19,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,334 INFO L168 Benchmark]: Boogie Preprocessor took 62.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,334 INFO L168 Benchmark]: RCFGBuilder took 899.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,334 INFO L168 Benchmark]: TraceAbstraction took 24988.50 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 340.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.3 MB). Peak memory consumption was 351.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:19,335 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 497.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 899.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24988.50 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 340.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.3 MB). Peak memory consumption was 351.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:03:21,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:03:21,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:03:21,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:03:21,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:03:21,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:03:21,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:03:21,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:03:21,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:03:21,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:03:21,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:03:21,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:03:21,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:03:21,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:03:21,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:03:21,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:03:21,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:03:21,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:03:21,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:03:21,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:03:21,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:03:21,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:03:21,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:03:21,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:03:21,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:03:21,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:03:21,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:03:21,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:03:21,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:03:21,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:03:21,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:03:21,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:03:21,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:03:21,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:03:21,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:03:21,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:03:21,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:03:21,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:03:21,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:03:21,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:03:21,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:03:21,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 09:03:21,547 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:03:21,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:03:21,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:03:21,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:03:21,548 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:03:21,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:03:21,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:03:21,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:03:21,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:03:21,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:03:21,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:03:21,549 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:03:21,550 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:03:21,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:03:21,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:03:21,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:03:21,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:03:21,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:03:21,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:03:21,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:03:21,551 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:03:21,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:03:21,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:03:21,552 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_235da04a-28cc-499c-8724-d1d5f5047fbc/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 -> 3e0675069af96ce2b947856aad4bf6a2d556158b [2019-10-22 09:03:21,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:03:21,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:03:21,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:03:21,605 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:03:21,605 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:03:21,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i [2019-10-22 09:03:21,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/0ad5c609e/acc3832bb1694e95842b046063efa2e3/FLAG4310225ea [2019-10-22 09:03:22,136 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:03:22,137 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i [2019-10-22 09:03:22,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/0ad5c609e/acc3832bb1694e95842b046063efa2e3/FLAG4310225ea [2019-10-22 09:03:22,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/bin/uautomizer/data/0ad5c609e/acc3832bb1694e95842b046063efa2e3 [2019-10-22 09:03:22,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:03:22,460 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:03:22,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:22,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:03:22,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:03:22,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:22" (1/1) ... [2019-10-22 09:03:22,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e61d2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:22, skipping insertion in model container [2019-10-22 09:03:22,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:22" (1/1) ... [2019-10-22 09:03:22,476 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:03:22,528 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:03:22,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:22,946 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:03:23,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:23,045 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:03:23,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23 WrapperNode [2019-10-22 09:03:23,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:23,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:03:23,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:03:23,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:03:23,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... [2019-10-22 09:03:23,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:03:23,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:03:23,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:03:23,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:03:23,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:03:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:03:23,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:03:23,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:03:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:03:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:03:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:03:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:03:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:03:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:03:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:03:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:03:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:03:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:03:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:03:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:03:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:03:23,192 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:03:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:03:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:03:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:03:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:03:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:03:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:03:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:03:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:03:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 09:03:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:03:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:03:24,039 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:03:24,040 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-10-22 09:03:24,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:24 BoogieIcfgContainer [2019-10-22 09:03:24,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:03:24,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:03:24,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:03:24,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:03:24,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:03:22" (1/3) ... [2019-10-22 09:03:24,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8f2823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:03:24, skipping insertion in model container [2019-10-22 09:03:24,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:23" (2/3) ... [2019-10-22 09:03:24,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8f2823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:03:24, skipping insertion in model container [2019-10-22 09:03:24,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:24" (3/3) ... [2019-10-22 09:03:24,048 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-2.i [2019-10-22 09:03:24,057 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:03:24,064 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 73 error locations. [2019-10-22 09:03:24,075 INFO L249 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2019-10-22 09:03:24,092 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:03:24,093 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:03:24,093 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:03:24,093 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:03:24,094 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:03:24,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:03:24,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:03:24,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:03:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-10-22 09:03:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 09:03:24,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:03:24,128 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:03:24,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr66ASSERT_VIOLATIONMEMORY_FREE, mainErr59REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr11REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr72ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr71ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr50REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr65REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr70ASSERT_VIOLATIONMEMORY_FREE, mainErr46REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr60REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr68ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr69ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr67ASSERT_VIOLATIONMEMORY_FREE, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr64REQUIRES_VIOLATION]=== [2019-10-22 09:03:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:24,137 INFO L82 PathProgramCache]: Analyzing trace with hash 685883881, now seen corresponding path program 1 times [2019-10-22 09:03:24,147 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:03:24,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [177065331] [2019-10-22 09:03:24,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235da04a-28cc-499c-8724-d1d5f5047fbc/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 09:03:24,373 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 09:03:24,373 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 09:03:24,377 INFO L168 Benchmark]: Toolchain (without parser) took 1917.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -75.3 MB). Peak memory consumption was 62.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:24,378 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:24,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 585.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:24,380 INFO L168 Benchmark]: Boogie Preprocessor took 83.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:24,381 INFO L168 Benchmark]: RCFGBuilder took 911.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:24,382 INFO L168 Benchmark]: TraceAbstraction took 333.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:24,384 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 585.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 911.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 333.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 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...