./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/alternating_list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da856cb29218eae000c82400da3ef1c667e9f55c ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:33:16,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:33:16,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:33:16,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:33:16,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:33:16,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:33:16,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:33:16,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:33:17,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:33:17,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:33:17,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:33:17,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:33:17,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:33:17,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:33:17,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:33:17,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:33:17,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:33:17,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:33:17,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:33:17,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:33:17,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:33:17,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:33:17,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:33:17,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:33:17,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:33:17,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:33:17,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:33:17,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:33:17,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:33:17,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:33:17,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:33:17,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:33:17,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:33:17,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:33:17,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:33:17,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:33:17,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:33:17,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:33:17,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:33:17,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:33:17,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:33:17,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-12-01 15:33:17,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:33:17,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:33:17,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:33:17,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:33:17,131 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:33:17,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:33:17,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:33:17,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:33:17,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:33:17,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:33:17,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:33:17,134 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 15:33:17,135 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 15:33:17,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:33:17,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-01 15:33:17,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:33:17,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:33:17,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:33:17,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:33:17,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:33:17,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:33:17,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:33:17,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:33:17,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:33:17,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:33:17,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:33:17,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:33:17,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da856cb29218eae000c82400da3ef1c667e9f55c [2020-12-01 15:33:17,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:33:17,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:33:17,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:33:17,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:33:17,508 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:33:17,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/../../sv-benchmarks/c/list-properties/alternating_list-2.i [2020-12-01 15:33:17,587 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/data/71a868655/7965b6c9ff184416aa3c5d8c7000b14b/FLAG2a13ab57e [2020-12-01 15:33:18,284 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:33:18,285 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/sv-benchmarks/c/list-properties/alternating_list-2.i [2020-12-01 15:33:18,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/data/71a868655/7965b6c9ff184416aa3c5d8c7000b14b/FLAG2a13ab57e [2020-12-01 15:33:18,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/data/71a868655/7965b6c9ff184416aa3c5d8c7000b14b [2020-12-01 15:33:18,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:33:18,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-01 15:33:18,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:33:18,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:33:18,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:33:18,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c05c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:18, skipping insertion in model container [2020-12-01 15:33:18,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:33:18" (1/1) ... [2020-12-01 15:33:18,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:33:18,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:33:18,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:33:18,967 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:33:19,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:33:19,146 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:33:19,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19 WrapperNode [2020-12-01 15:33:19,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:33:19,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:33:19,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:33:19,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:33:19,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... [2020-12-01 15:33:19,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:33:19,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:33:19,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:33:19,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:33:19,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/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 [2020-12-01 15:33:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-12-01 15:33:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:33:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-12-01 15:33:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-12-01 15:33:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-12-01 15:33:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-12-01 15:33:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-12-01 15:33:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-12-01 15:33:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-12-01 15:33:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-12-01 15:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-12-01 15:33:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-12-01 15:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-12-01 15:33:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-12-01 15:33:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-12-01 15:33:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:33:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-12-01 15:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-12-01 15:33:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-12-01 15:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-12-01 15:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-12-01 15:33:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-12-01 15:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-12-01 15:33:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-12-01 15:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-12-01 15:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-12-01 15:33:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-12-01 15:33:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-12-01 15:33:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-12-01 15:33:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-12-01 15:33:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-12-01 15:33:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-12-01 15:33:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-12-01 15:33:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-12-01 15:33:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-12-01 15:33:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-12-01 15:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-12-01 15:33:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-12-01 15:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-12-01 15:33:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-12-01 15:33:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-12-01 15:33:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-12-01 15:33:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-12-01 15:33:19,431 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-12-01 15:33:19,431 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-12-01 15:33:19,432 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-12-01 15:33:19,432 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-12-01 15:33:19,433 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-12-01 15:33:19,433 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-12-01 15:33:19,433 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-12-01 15:33:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-12-01 15:33:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-12-01 15:33:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-12-01 15:33:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-12-01 15:33:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-12-01 15:33:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-12-01 15:33:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-12-01 15:33:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-12-01 15:33:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-12-01 15:33:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-12-01 15:33:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-12-01 15:33:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-12-01 15:33:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-12-01 15:33:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-12-01 15:33:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-12-01 15:33:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-12-01 15:33:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-12-01 15:33:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-12-01 15:33:19,441 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-12-01 15:33:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-12-01 15:33:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-12-01 15:33:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-12-01 15:33:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-12-01 15:33:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-12-01 15:33:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-12-01 15:33:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-12-01 15:33:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-12-01 15:33:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-12-01 15:33:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-12-01 15:33:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-12-01 15:33:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-12-01 15:33:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-12-01 15:33:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-12-01 15:33:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-12-01 15:33:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-12-01 15:33:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-12-01 15:33:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-12-01 15:33:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-12-01 15:33:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-12-01 15:33:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-12-01 15:33:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-12-01 15:33:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-12-01 15:33:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-12-01 15:33:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-12-01 15:33:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-12-01 15:33:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-12-01 15:33:19,451 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-12-01 15:33:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-12-01 15:33:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-12-01 15:33:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-12-01 15:33:19,452 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-12-01 15:33:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-12-01 15:33:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-12-01 15:33:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-12-01 15:33:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-12-01 15:33:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-12-01 15:33:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-12-01 15:33:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-12-01 15:33:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-12-01 15:33:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-12-01 15:33:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-12-01 15:33:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-12-01 15:33:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-12-01 15:33:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-12-01 15:33:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-12-01 15:33:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-12-01 15:33:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-12-01 15:33:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-12-01 15:33:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-12-01 15:33:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-12-01 15:33:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-12-01 15:33:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-12-01 15:33:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-12-01 15:33:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-12-01 15:33:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-12-01 15:33:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 15:33:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:33:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 15:33:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 15:33:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:33:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-12-01 15:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:33:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:33:19,944 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-12-01 15:33:20,361 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:33:20,361 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-12-01 15:33:20,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:20 BoogieIcfgContainer [2020-12-01 15:33:20,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:33:20,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:33:20,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:33:20,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:33:20,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:33:18" (1/3) ... [2020-12-01 15:33:20,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d27288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:33:20, skipping insertion in model container [2020-12-01 15:33:20,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:33:19" (2/3) ... [2020-12-01 15:33:20,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d27288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:33:20, skipping insertion in model container [2020-12-01 15:33:20,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:20" (3/3) ... [2020-12-01 15:33:20,379 INFO L111 eAbstractionObserver]: Analyzing ICFG alternating_list-2.i [2020-12-01 15:33:20,401 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:33:20,406 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2020-12-01 15:33:20,423 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-12-01 15:33:20,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:33:20,448 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-01 15:33:20,449 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:33:20,449 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:33:20,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:33:20,449 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:33:20,450 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:33:20,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:33:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-12-01 15:33:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:33:20,506 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:20,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:20,509 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:20,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash -463735565, now seen corresponding path program 1 times [2020-12-01 15:33:20,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:20,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487551144] [2020-12-01 15:33:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:20,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:20,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487551144] [2020-12-01 15:33:20,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:20,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:33:20,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005088781] [2020-12-01 15:33:20,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:33:20,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:20,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:33:20,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:33:20,829 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2020-12-01 15:33:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:21,145 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2020-12-01 15:33:21,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:33:21,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-01 15:33:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:21,172 INFO L225 Difference]: With dead ends: 83 [2020-12-01 15:33:21,181 INFO L226 Difference]: Without dead ends: 76 [2020-12-01 15:33:21,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:33:21,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-01 15:33:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-01 15:33:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-01 15:33:21,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2020-12-01 15:33:21,261 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 10 [2020-12-01 15:33:21,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:21,262 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2020-12-01 15:33:21,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:33:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2020-12-01 15:33:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:33:21,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:21,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:21,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:33:21,264 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:21,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1490936265, now seen corresponding path program 1 times [2020-12-01 15:33:21,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:21,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324138493] [2020-12-01 15:33:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:21,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:21,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:21,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324138493] [2020-12-01 15:33:21,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:21,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:33:21,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974848720] [2020-12-01 15:33:21,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:33:21,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:21,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:33:21,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:33:21,444 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 5 states. [2020-12-01 15:33:21,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:21,770 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-12-01 15:33:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:33:21,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-01 15:33:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:21,778 INFO L225 Difference]: With dead ends: 97 [2020-12-01 15:33:21,778 INFO L226 Difference]: Without dead ends: 97 [2020-12-01 15:33:21,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-12-01 15:33:21,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 77. [2020-12-01 15:33:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-01 15:33:21,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2020-12-01 15:33:21,804 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 11 [2020-12-01 15:33:21,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:21,805 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2020-12-01 15:33:21,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:33:21,805 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2020-12-01 15:33:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:33:21,806 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:21,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:21,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:33:21,808 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:21,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:21,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1490936264, now seen corresponding path program 1 times [2020-12-01 15:33:21,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:21,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999483180] [2020-12-01 15:33:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:21,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:21,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999483180] [2020-12-01 15:33:22,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:22,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:33:22,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245448091] [2020-12-01 15:33:22,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:33:22,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:22,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:33:22,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:33:22,010 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 5 states. [2020-12-01 15:33:22,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:22,315 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2020-12-01 15:33:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:33:22,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-01 15:33:22,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:22,319 INFO L225 Difference]: With dead ends: 104 [2020-12-01 15:33:22,319 INFO L226 Difference]: Without dead ends: 104 [2020-12-01 15:33:22,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-01 15:33:22,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2020-12-01 15:33:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-01 15:33:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2020-12-01 15:33:22,332 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 11 [2020-12-01 15:33:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:22,333 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2020-12-01 15:33:22,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:33:22,333 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2020-12-01 15:33:22,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 15:33:22,341 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:22,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:22,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:33:22,342 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:22,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:22,343 INFO L82 PathProgramCache]: Analyzing trace with hash -574680799, now seen corresponding path program 1 times [2020-12-01 15:33:22,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:22,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99070235] [2020-12-01 15:33:22,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:22,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99070235] [2020-12-01 15:33:22,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:22,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:33:22,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543842856] [2020-12-01 15:33:22,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:33:22,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:22,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:33:22,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:33:22,529 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 5 states. [2020-12-01 15:33:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:22,800 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2020-12-01 15:33:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:33:22,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-12-01 15:33:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:22,806 INFO L225 Difference]: With dead ends: 100 [2020-12-01 15:33:22,806 INFO L226 Difference]: Without dead ends: 100 [2020-12-01 15:33:22,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:22,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-12-01 15:33:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2020-12-01 15:33:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-01 15:33:22,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2020-12-01 15:33:22,839 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 19 [2020-12-01 15:33:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:22,840 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2020-12-01 15:33:22,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:33:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2020-12-01 15:33:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:33:22,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:22,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:22,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:33:22,844 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:22,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:22,846 INFO L82 PathProgramCache]: Analyzing trace with hash 633071481, now seen corresponding path program 1 times [2020-12-01 15:33:22,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:22,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749035616] [2020-12-01 15:33:22,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:22,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:22,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749035616] [2020-12-01 15:33:22,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:22,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:33:22,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87339370] [2020-12-01 15:33:22,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:33:22,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:22,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:33:22,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:33:22,929 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand 4 states. [2020-12-01 15:33:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:23,108 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2020-12-01 15:33:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:33:23,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-01 15:33:23,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:23,112 INFO L225 Difference]: With dead ends: 143 [2020-12-01 15:33:23,112 INFO L226 Difference]: Without dead ends: 143 [2020-12-01 15:33:23,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:33:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-12-01 15:33:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 103. [2020-12-01 15:33:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-01 15:33:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2020-12-01 15:33:23,143 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 20 [2020-12-01 15:33:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:23,144 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2020-12-01 15:33:23,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:33:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2020-12-01 15:33:23,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:33:23,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:23,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:23,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:33:23,147 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:23,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash 337246851, now seen corresponding path program 1 times [2020-12-01 15:33:23,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:23,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328761039] [2020-12-01 15:33:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:23,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:23,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328761039] [2020-12-01 15:33:23,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:23,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:33:23,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205634557] [2020-12-01 15:33:23,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:33:23,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:23,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:33:23,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:33:23,323 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand 7 states. [2020-12-01 15:33:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:23,733 INFO L93 Difference]: Finished difference Result 144 states and 159 transitions. [2020-12-01 15:33:23,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:33:23,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-01 15:33:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:23,737 INFO L225 Difference]: With dead ends: 144 [2020-12-01 15:33:23,738 INFO L226 Difference]: Without dead ends: 144 [2020-12-01 15:33:23,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:33:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-01 15:33:23,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 106. [2020-12-01 15:33:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-01 15:33:23,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2020-12-01 15:33:23,762 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 20 [2020-12-01 15:33:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:23,763 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2020-12-01 15:33:23,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:33:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2020-12-01 15:33:23,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:33:23,764 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:23,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:23,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:33:23,774 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:23,776 INFO L82 PathProgramCache]: Analyzing trace with hash -635189694, now seen corresponding path program 1 times [2020-12-01 15:33:23,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:23,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506219394] [2020-12-01 15:33:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:23,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:23,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506219394] [2020-12-01 15:33:23,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:23,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:33:23,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471860907] [2020-12-01 15:33:23,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:33:23,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:23,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:33:23,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:23,944 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 6 states. [2020-12-01 15:33:24,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:24,221 INFO L93 Difference]: Finished difference Result 115 states and 130 transitions. [2020-12-01 15:33:24,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:33:24,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-12-01 15:33:24,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:24,224 INFO L225 Difference]: With dead ends: 115 [2020-12-01 15:33:24,224 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 15:33:24,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:33:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 15:33:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2020-12-01 15:33:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-01 15:33:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2020-12-01 15:33:24,243 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 20 [2020-12-01 15:33:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:24,243 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2020-12-01 15:33:24,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:33:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2020-12-01 15:33:24,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:33:24,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:24,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:24,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:33:24,250 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:24,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1782539078, now seen corresponding path program 1 times [2020-12-01 15:33:24,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:24,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351046075] [2020-12-01 15:33:24,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:24,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351046075] [2020-12-01 15:33:24,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:24,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:33:24,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558651932] [2020-12-01 15:33:24,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:33:24,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:24,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:33:24,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:24,488 INFO L87 Difference]: Start difference. First operand 108 states and 124 transitions. Second operand 6 states. [2020-12-01 15:33:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:24,693 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2020-12-01 15:33:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:33:24,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-01 15:33:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:24,695 INFO L225 Difference]: With dead ends: 122 [2020-12-01 15:33:24,695 INFO L226 Difference]: Without dead ends: 118 [2020-12-01 15:33:24,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:33:24,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-12-01 15:33:24,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2020-12-01 15:33:24,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-01 15:33:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-12-01 15:33:24,701 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 21 [2020-12-01 15:33:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:24,701 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-12-01 15:33:24,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:33:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-12-01 15:33:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:33:24,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:24,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:24,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:33:24,712 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:24,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1783956134, now seen corresponding path program 1 times [2020-12-01 15:33:24,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:24,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180089742] [2020-12-01 15:33:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:24,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:24,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180089742] [2020-12-01 15:33:24,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:24,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 15:33:24,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283604169] [2020-12-01 15:33:24,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:33:24,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:24,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:33:24,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:33:24,880 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 7 states. [2020-12-01 15:33:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:25,185 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2020-12-01 15:33:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:33:25,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-01 15:33:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:25,190 INFO L225 Difference]: With dead ends: 119 [2020-12-01 15:33:25,190 INFO L226 Difference]: Without dead ends: 119 [2020-12-01 15:33:25,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:33:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-01 15:33:25,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 112. [2020-12-01 15:33:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-01 15:33:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-12-01 15:33:25,203 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 21 [2020-12-01 15:33:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:25,204 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-12-01 15:33:25,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:33:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-12-01 15:33:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:33:25,205 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:25,205 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:25,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:33:25,205 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:25,206 INFO L82 PathProgramCache]: Analyzing trace with hash 119047172, now seen corresponding path program 1 times [2020-12-01 15:33:25,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:25,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395515496] [2020-12-01 15:33:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:25,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:25,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395515496] [2020-12-01 15:33:25,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:25,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 15:33:25,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52772923] [2020-12-01 15:33:25,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:33:25,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:25,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:33:25,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:33:25,303 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 7 states. [2020-12-01 15:33:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:25,679 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2020-12-01 15:33:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:33:25,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-01 15:33:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:25,682 INFO L225 Difference]: With dead ends: 116 [2020-12-01 15:33:25,682 INFO L226 Difference]: Without dead ends: 116 [2020-12-01 15:33:25,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:33:25,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-01 15:33:25,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2020-12-01 15:33:25,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-01 15:33:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2020-12-01 15:33:25,688 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 21 [2020-12-01 15:33:25,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:25,688 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2020-12-01 15:33:25,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:33:25,688 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2020-12-01 15:33:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:33:25,689 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:25,689 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:33:25,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:33:25,690 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:25,691 INFO L82 PathProgramCache]: Analyzing trace with hash 119047173, now seen corresponding path program 1 times [2020-12-01 15:33:25,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:25,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545481488] [2020-12-01 15:33:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:25,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:25,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545481488] [2020-12-01 15:33:25,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:25,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 15:33:25,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711282340] [2020-12-01 15:33:25,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:33:25,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:25,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:33:25,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:33:25,828 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 7 states. [2020-12-01 15:33:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:26,299 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2020-12-01 15:33:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:33:26,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-01 15:33:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:26,302 INFO L225 Difference]: With dead ends: 129 [2020-12-01 15:33:26,302 INFO L226 Difference]: Without dead ends: 129 [2020-12-01 15:33:26,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:33:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-01 15:33:26,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 97. [2020-12-01 15:33:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-01 15:33:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2020-12-01 15:33:26,311 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 21 [2020-12-01 15:33:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:26,312 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2020-12-01 15:33:26,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:33:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2020-12-01 15:33:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 15:33:26,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:26,314 INFO L422 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] [2020-12-01 15:33:26,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:33:26,314 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:26,315 INFO L82 PathProgramCache]: Analyzing trace with hash -531934524, now seen corresponding path program 1 times [2020-12-01 15:33:26,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:26,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760963115] [2020-12-01 15:33:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:26,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760963115] [2020-12-01 15:33:26,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:26,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:33:26,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564655681] [2020-12-01 15:33:26,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:33:26,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:26,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:33:26,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:26,430 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand 6 states. [2020-12-01 15:33:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:26,607 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2020-12-01 15:33:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:33:26,608 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-01 15:33:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:26,609 INFO L225 Difference]: With dead ends: 96 [2020-12-01 15:33:26,609 INFO L226 Difference]: Without dead ends: 96 [2020-12-01 15:33:26,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:33:26,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-01 15:33:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-12-01 15:33:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-01 15:33:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-12-01 15:33:26,614 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 22 [2020-12-01 15:33:26,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:26,616 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-12-01 15:33:26,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:33:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-12-01 15:33:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 15:33:26,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:26,620 INFO L422 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] [2020-12-01 15:33:26,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 15:33:26,621 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:26,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:26,622 INFO L82 PathProgramCache]: Analyzing trace with hash 689899095, now seen corresponding path program 1 times [2020-12-01 15:33:26,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:26,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059972475] [2020-12-01 15:33:26,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:26,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 15:33:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:33:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:33:26,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059972475] [2020-12-01 15:33:26,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:33:26,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:33:26,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498132968] [2020-12-01 15:33:26,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:33:26,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:33:26,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:33:26,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:33:26,779 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 7 states. [2020-12-01 15:33:27,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:33:27,084 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2020-12-01 15:33:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:33:27,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-01 15:33:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:33:27,086 INFO L225 Difference]: With dead ends: 110 [2020-12-01 15:33:27,087 INFO L226 Difference]: Without dead ends: 103 [2020-12-01 15:33:27,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:33:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-01 15:33:27,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2020-12-01 15:33:27,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-01 15:33:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 102 transitions. [2020-12-01 15:33:27,092 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 102 transitions. Word has length 23 [2020-12-01 15:33:27,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:33:27,093 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 102 transitions. [2020-12-01 15:33:27,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:33:27,093 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 102 transitions. [2020-12-01 15:33:27,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 15:33:27,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:33:27,095 INFO L422 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] [2020-12-01 15:33:27,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 15:33:27,096 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr27ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, mainErr26ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-01 15:33:27,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:33:27,096 INFO L82 PathProgramCache]: Analyzing trace with hash -514536618, now seen corresponding path program 1 times [2020-12-01 15:33:27,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:33:27,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84373628] [2020-12-01 15:33:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:33:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:27,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:33:27,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:33:27,230 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:33:27,230 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:33:27,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 15:33:27,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:33:27 BoogieIcfgContainer [2020-12-01 15:33:27,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:33:27,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:33:27,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:33:27,290 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:33:27,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:33:20" (3/4) ... [2020-12-01 15:33:27,294 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:33:27,351 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4fe974d0-472e-4bf5-9f4e-e8d096b01507/bin/uautomizer/witness.graphml [2020-12-01 15:33:27,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:33:27,354 INFO L168 Benchmark]: Toolchain (without parser) took 8852.44 ms. Allocated memory was 92.3 MB in the beginning and 203.4 MB in the end (delta: 111.1 MB). Free memory was 70.0 MB in the beginning and 158.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:27,354 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 75.5 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:33:27,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.55 ms. Allocated memory is still 92.3 MB. Free memory was 69.8 MB in the beginning and 68.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:27,355 INFO L168 Benchmark]: Boogie Preprocessor took 132.29 ms. Allocated memory is still 92.3 MB. Free memory was 68.7 MB in the beginning and 69.5 MB in the end (delta: -831.0 kB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:27,356 INFO L168 Benchmark]: RCFGBuilder took 1080.75 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 69.5 MB in the beginning and 82.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:27,357 INFO L168 Benchmark]: TraceAbstraction took 6921.89 ms. Allocated memory was 123.7 MB in the beginning and 203.4 MB in the end (delta: 79.7 MB). Free memory was 81.3 MB in the beginning and 161.6 MB in the end (delta: -80.3 MB). Peak memory consumption was 268.5 kB. Max. memory is 16.1 GB. [2020-12-01 15:33:27,358 INFO L168 Benchmark]: Witness Printer took 61.57 ms. Allocated memory is still 203.4 MB. Free memory was 161.6 MB in the beginning and 158.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:33:27,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 75.5 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.55 ms. Allocated memory is still 92.3 MB. Free memory was 69.8 MB in the beginning and 68.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.29 ms. Allocated memory is still 92.3 MB. Free memory was 68.7 MB in the beginning and 69.5 MB in the end (delta: -831.0 kB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1080.75 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 69.5 MB in the beginning and 82.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6921.89 ms. Allocated memory was 123.7 MB in the beginning and 203.4 MB in the end (delta: 79.7 MB). Free memory was 81.3 MB in the beginning and 161.6 MB in the end (delta: -80.3 MB). Peak memory consumption was 268.5 kB. Max. memory is 16.1 GB. * Witness Printer took 61.57 ms. Allocated memory is still 203.4 MB. Free memory was 161.6 MB in the beginning and 158.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L534] COND FALSE !(a == 0) VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L535] List t; [L536] List p = a; VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L537] COND TRUE __VERIFIER_nondet_int() [L538] COND TRUE \read(flag) VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L539] p->h = 2 VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L540] flag = 0 VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, p={1:0}] [L545] t = (List) malloc(sizeof(struct node)) VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, t={-1:0}] [L546] COND FALSE !(t == 0) VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, t={-1:0}] [L547] p->n = t VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, t={-1:0}] [L548] EXPR p->n VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, p->n={-1:0}, t={-1:0}] [L548] p = p->n [L537] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, t={-1:0}] [L551] p = a [L552] flag = 1 VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, t={-1:0}] [L553] EXPR p->h VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, p->h=2, t={-1:0}] [L553] COND TRUE p->h != 3 [L554] COND TRUE \read(flag) [L555] flag = 0 VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, t={-1:0}] [L556] EXPR p->h VAL [a={1:0}, flag=0, malloc(sizeof(struct node))={1:0}, malloc(sizeof(struct node))={-1:0}, p={1:0}, p->h=2, t={-1:0}] [L556] COND TRUE p->h != 1 [L573] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "alternating_list-2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 102 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.7s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 754 SDtfs, 1009 SDslu, 1111 SDs, 0 SdLazy, 2145 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 189 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 19023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...