./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0234-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0234-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f6f17031167939ba8b1b9009fe61e24f5e78728 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 02:32:34,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:32:34,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:32:34,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:32:34,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:32:34,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:32:34,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:32:34,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:32:34,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:32:34,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:32:34,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:32:34,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:32:34,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:32:34,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:32:34,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:32:34,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:32:34,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:32:34,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:32:34,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:32:34,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:32:34,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:32:34,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:32:34,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:32:34,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:32:34,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:32:34,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:32:34,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:32:34,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:32:34,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:32:34,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:32:34,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:32:34,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:32:34,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:32:34,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:32:34,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:32:34,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:32:34,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:32:34,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:32:34,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:32:34,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:32:34,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:32:34,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 02:32:34,517 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:32:34,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:32:34,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:32:34,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:32:34,519 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:32:34,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:32:34,519 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:32:34,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:32:34,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:32:34,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:32:34,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:32:34,520 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 02:32:34,520 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 02:32:34,521 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 02:32:34,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:32:34,521 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 02:32:34,521 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 02:32:34,521 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:32:34,522 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:32:34,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:32:34,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:32:34,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:32:34,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:32:34,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:32:34,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:32:34,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:32:34,524 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 02:32:34,524 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 02:32:34,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 02:32:34,524 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f6f17031167939ba8b1b9009fe61e24f5e78728 [2019-11-20 02:32:34,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:32:34,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:32:34,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:32:34,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:32:34,765 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:32:34,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/../../sv-benchmarks/c/memsafety/test-0234-1.i [2019-11-20 02:32:34,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/data/3b6874419/f362f8ae7e4942e5b791116f0bf7af40/FLAGfb7bd9be0 [2019-11-20 02:32:35,276 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:32:35,277 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/sv-benchmarks/c/memsafety/test-0234-1.i [2019-11-20 02:32:35,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/data/3b6874419/f362f8ae7e4942e5b791116f0bf7af40/FLAGfb7bd9be0 [2019-11-20 02:32:35,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/data/3b6874419/f362f8ae7e4942e5b791116f0bf7af40 [2019-11-20 02:32:35,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:32:35,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 02:32:35,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:32:35,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:32:35,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:32:35,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:32:35" (1/1) ... [2019-11-20 02:32:35,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48595b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:35, skipping insertion in model container [2019-11-20 02:32:35,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:32:35" (1/1) ... [2019-11-20 02:32:35,573 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:32:35,636 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:32:36,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:32:36,220 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:32:36,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:32:36,383 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:32:36,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36 WrapperNode [2019-11-20 02:32:36,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:32:36,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:32:36,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:32:36,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:32:36,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... [2019-11-20 02:32:36,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:32:36,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:32:36,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:32:36,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:32:36,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:32:36,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 02:32:36,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:32:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 02:32:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 02:32:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 02:32:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 02:32:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 02:32:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2019-11-20 02:32:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2019-11-20 02:32:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2019-11-20 02:32:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2019-11-20 02:32:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2019-11-20 02:32:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2019-11-20 02:32:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2019-11-20 02:32:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2019-11-20 02:32:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2019-11-20 02:32:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2019-11-20 02:32:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2019-11-20 02:32:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2019-11-20 02:32:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 02:32:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 02:32:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-20 02:32:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 02:32:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 02:32:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 02:32:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 02:32:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 02:32:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 02:32:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 02:32:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 02:32:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 02:32:36,600 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 02:32:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 02:32:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 02:32:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 02:32:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 02:32:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 02:32:36,601 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 02:32:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 02:32:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 02:32:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 02:32:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 02:32:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 02:32:36,602 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 02:32:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 02:32:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 02:32:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 02:32:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 02:32:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 02:32:36,603 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 02:32:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 02:32:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 02:32:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 02:32:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 02:32:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 02:32:36,604 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 02:32:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 02:32:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 02:32:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 02:32:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 02:32:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 02:32:36,605 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 02:32:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 02:32:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 02:32:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 02:32:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 02:32:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 02:32:36,606 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 02:32:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 02:32:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 02:32:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 02:32:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 02:32:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 02:32:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 02:32:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 02:32:36,609 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 02:32:36,609 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 02:32:36,609 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 02:32:36,609 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 02:32:36,609 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 02:32:36,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 02:32:36,610 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 02:32:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 02:32:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 02:32:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 02:32:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 02:32:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 02:32:36,611 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 02:32:36,612 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 02:32:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 02:32:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 02:32:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 02:32:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 02:32:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 02:32:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 02:32:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 02:32:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 02:32:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 02:32:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 02:32:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 02:32:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-11-20 02:32:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-11-20 02:32:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 02:32:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-11-20 02:32:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-11-20 02:32:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-11-20 02:32:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-11-20 02:32:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-11-20 02:32:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-11-20 02:32:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-11-20 02:32:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-11-20 02:32:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-11-20 02:32:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-11-20 02:32:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-11-20 02:32:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-11-20 02:32:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-11-20 02:32:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-11-20 02:32:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-11-20 02:32:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-11-20 02:32:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-11-20 02:32:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2019-11-20 02:32:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-11-20 02:32:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-11-20 02:32:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2019-11-20 02:32:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2019-11-20 02:32:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2019-11-20 02:32:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-11-20 02:32:36,621 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 02:32:36,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 02:32:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 02:32:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2019-11-20 02:32:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2019-11-20 02:32:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 02:32:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 02:32:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2019-11-20 02:32:36,624 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2019-11-20 02:32:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2019-11-20 02:32:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2019-11-20 02:32:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 02:32:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 02:32:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:32:36,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 02:32:36,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:32:37,474 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 02:32:38,080 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:32:38,081 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 02:32:38,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:32:38 BoogieIcfgContainer [2019-11-20 02:32:38,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:32:38,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:32:38,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:32:38,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:32:38,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:32:35" (1/3) ... [2019-11-20 02:32:38,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355c25fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:32:38, skipping insertion in model container [2019-11-20 02:32:38,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:32:36" (2/3) ... [2019-11-20 02:32:38,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355c25fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:32:38, skipping insertion in model container [2019-11-20 02:32:38,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:32:38" (3/3) ... [2019-11-20 02:32:38,096 INFO L109 eAbstractionObserver]: Analyzing ICFG test-0234-1.i [2019-11-20 02:32:38,111 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:32:38,121 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 75 error locations. [2019-11-20 02:32:38,141 INFO L249 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2019-11-20 02:32:38,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:32:38,163 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 02:32:38,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:32:38,164 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:32:38,164 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:32:38,164 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:32:38,164 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:32:38,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:32:38,205 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states. [2019-11-20 02:32:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 02:32:38,215 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:38,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:38,217 INFO L410 AbstractCegarLoop]: === Iteration 1 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:38,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:38,225 INFO L82 PathProgramCache]: Analyzing trace with hash -916832971, now seen corresponding path program 1 times [2019-11-20 02:32:38,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:38,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1937280272] [2019-11-20 02:32:38,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:32:38,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 02:32:38,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:32:38,596 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:32:38,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1937280272] [2019-11-20 02:32:38,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:32:38,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 02:32:38,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473659836] [2019-11-20 02:32:38,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 02:32:38,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:32:38,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 02:32:38,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:32:38,648 INFO L87 Difference]: Start difference. First operand 222 states. Second operand 2 states. [2019-11-20 02:32:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:32:38,702 INFO L93 Difference]: Finished difference Result 222 states and 237 transitions. [2019-11-20 02:32:38,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 02:32:38,707 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 02:32:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:32:38,732 INFO L225 Difference]: With dead ends: 222 [2019-11-20 02:32:38,732 INFO L226 Difference]: Without dead ends: 219 [2019-11-20 02:32:38,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 02:32:38,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-11-20 02:32:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2019-11-20 02:32:38,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-11-20 02:32:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2019-11-20 02:32:38,830 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 7 [2019-11-20 02:32:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:32:38,831 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2019-11-20 02:32:38,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 02:32:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2019-11-20 02:32:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 02:32:38,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:38,838 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:39,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:39,040 INFO L410 AbstractCegarLoop]: === Iteration 2 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:39,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:39,040 INFO L82 PathProgramCache]: Analyzing trace with hash 842566377, now seen corresponding path program 1 times [2019-11-20 02:32:39,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:39,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1542901096] [2019-11-20 02:32:39,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:32:39,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 02:32:39,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:39,422 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 02:32:39,423 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:32:39,427 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:32:39,428 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:32:39,428 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 02:32:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:32:39,438 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:32:39,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1542901096] [2019-11-20 02:32:39,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:32:39,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 02:32:39,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988444463] [2019-11-20 02:32:39,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 02:32:39,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:32:39,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:32:39,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:32:39,454 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 3 states. [2019-11-20 02:32:39,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:32:39,803 INFO L93 Difference]: Finished difference Result 218 states and 233 transitions. [2019-11-20 02:32:39,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:32:39,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-20 02:32:39,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:32:39,806 INFO L225 Difference]: With dead ends: 218 [2019-11-20 02:32:39,806 INFO L226 Difference]: Without dead ends: 218 [2019-11-20 02:32:39,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:32:39,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-11-20 02:32:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2019-11-20 02:32:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-11-20 02:32:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2019-11-20 02:32:39,837 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 12 [2019-11-20 02:32:39,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:32:39,837 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2019-11-20 02:32:39,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 02:32:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2019-11-20 02:32:39,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 02:32:39,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:39,838 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:40,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:40,041 INFO L410 AbstractCegarLoop]: === Iteration 3 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:40,041 INFO L82 PathProgramCache]: Analyzing trace with hash 842566378, now seen corresponding path program 1 times [2019-11-20 02:32:40,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:40,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [115152204] [2019-11-20 02:32:40,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:32:40,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 02:32:40,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:40,466 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-11-20 02:32:40,466 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:32:40,494 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:32:40,495 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:32:40,495 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:19 [2019-11-20 02:32:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:32:40,577 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:32:41,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [115152204] [2019-11-20 02:32:41,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:32:41,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 02:32:41,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350884897] [2019-11-20 02:32:41,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 02:32:41,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:32:41,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 02:32:41,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-20 02:32:41,133 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand 10 states. [2019-11-20 02:32:42,302 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-11-20 02:32:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:32:44,551 INFO L93 Difference]: Finished difference Result 228 states and 243 transitions. [2019-11-20 02:32:44,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 02:32:44,554 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-20 02:32:44,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:32:44,555 INFO L225 Difference]: With dead ends: 228 [2019-11-20 02:32:44,555 INFO L226 Difference]: Without dead ends: 228 [2019-11-20 02:32:44,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-20 02:32:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-11-20 02:32:44,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-20 02:32:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-20 02:32:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 243 transitions. [2019-11-20 02:32:44,581 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 243 transitions. Word has length 12 [2019-11-20 02:32:44,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:32:44,582 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 243 transitions. [2019-11-20 02:32:44,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 02:32:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 243 transitions. [2019-11-20 02:32:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-11-20 02:32:44,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:44,589 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:44,792 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:44,793 INFO L410 AbstractCegarLoop]: === Iteration 4 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:44,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:44,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1854756803, now seen corresponding path program 1 times [2019-11-20 02:32:44,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:44,796 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2005506300] [2019-11-20 02:32:44,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:32:45,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 02:32:45,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-11-20 02:32:45,857 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:47,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:32:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-11-20 02:32:47,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2005506300] [2019-11-20 02:32:47,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 02:32:47,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2019-11-20 02:32:47,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16326171] [2019-11-20 02:32:47,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 02:32:47,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:32:47,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 02:32:47,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-20 02:32:47,902 INFO L87 Difference]: Start difference. First operand 228 states and 243 transitions. Second operand 8 states. [2019-11-20 02:32:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:32:48,575 INFO L93 Difference]: Finished difference Result 245 states and 260 transitions. [2019-11-20 02:32:48,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 02:32:48,576 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2019-11-20 02:32:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:32:48,578 INFO L225 Difference]: With dead ends: 245 [2019-11-20 02:32:48,578 INFO L226 Difference]: Without dead ends: 229 [2019-11-20 02:32:48,579 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-11-20 02:32:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-11-20 02:32:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-11-20 02:32:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-11-20 02:32:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 244 transitions. [2019-11-20 02:32:48,590 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 244 transitions. Word has length 123 [2019-11-20 02:32:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:32:48,591 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 244 transitions. [2019-11-20 02:32:48,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 02:32:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 244 transitions. [2019-11-20 02:32:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-11-20 02:32:48,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:48,597 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:48,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:48,806 INFO L410 AbstractCegarLoop]: === Iteration 5 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:48,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:48,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1315690005, now seen corresponding path program 1 times [2019-11-20 02:32:48,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:48,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1343542261] [2019-11-20 02:32:48,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:32:49,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 02:32:49,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 95 proven. 1 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2019-11-20 02:32:49,866 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:51,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:32:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2019-11-20 02:32:52,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1343542261] [2019-11-20 02:32:52,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 02:32:52,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2019-11-20 02:32:52,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681084797] [2019-11-20 02:32:52,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 02:32:52,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:32:52,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 02:32:52,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2019-11-20 02:32:52,160 INFO L87 Difference]: Start difference. First operand 229 states and 244 transitions. Second operand 15 states. [2019-11-20 02:32:52,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:32:52,966 INFO L93 Difference]: Finished difference Result 246 states and 261 transitions. [2019-11-20 02:32:52,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 02:32:52,967 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 129 [2019-11-20 02:32:52,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:32:52,970 INFO L225 Difference]: With dead ends: 246 [2019-11-20 02:32:52,970 INFO L226 Difference]: Without dead ends: 230 [2019-11-20 02:32:52,971 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2019-11-20 02:32:52,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-11-20 02:32:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2019-11-20 02:32:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-11-20 02:32:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2019-11-20 02:32:52,992 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 129 [2019-11-20 02:32:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:32:52,995 INFO L462 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2019-11-20 02:32:52,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 02:32:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2019-11-20 02:32:53,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-20 02:32:53,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:53,003 INFO L410 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:53,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:53,210 INFO L410 AbstractCegarLoop]: === Iteration 6 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:53,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:53,211 INFO L82 PathProgramCache]: Analyzing trace with hash -64120515, now seen corresponding path program 2 times [2019-11-20 02:32:53,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:53,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [611887467] [2019-11-20 02:32:53,212 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:54,086 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 02:32:54,087 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 02:32:54,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 02:32:54,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:54,443 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2019-11-20 02:32:54,443 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:55,312 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-20 02:32:55,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:32:56,470 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-11-20 02:32:56,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [611887467] [2019-11-20 02:32:56,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 02:32:56,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-11-20 02:32:56,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814916308] [2019-11-20 02:32:56,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 02:32:56,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:32:56,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 02:32:56,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2019-11-20 02:32:56,473 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 17 states. [2019-11-20 02:32:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:32:57,658 INFO L93 Difference]: Finished difference Result 247 states and 262 transitions. [2019-11-20 02:32:57,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 02:32:57,661 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 135 [2019-11-20 02:32:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:32:57,668 INFO L225 Difference]: With dead ends: 247 [2019-11-20 02:32:57,668 INFO L226 Difference]: Without dead ends: 231 [2019-11-20 02:32:57,669 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 251 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2019-11-20 02:32:57,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2019-11-20 02:32:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2019-11-20 02:32:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-11-20 02:32:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 246 transitions. [2019-11-20 02:32:57,683 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 246 transitions. Word has length 135 [2019-11-20 02:32:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:32:57,683 INFO L462 AbstractCegarLoop]: Abstraction has 231 states and 246 transitions. [2019-11-20 02:32:57,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 02:32:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 246 transitions. [2019-11-20 02:32:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-20 02:32:57,689 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:32:57,689 INFO L410 BasicCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:32:57,895 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:57,896 INFO L410 AbstractCegarLoop]: === Iteration 7 === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l3_destroyErr3REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l0_insertErr2REQUIRES_VIOLATION, l0_insertErr3REQUIRES_VIOLATION, l0_insertErr4REQUIRES_VIOLATION, l0_insertErr5REQUIRES_VIOLATION, l0_insertErr0REQUIRES_VIOLATION, l0_insertErr1REQUIRES_VIOLATION, l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr1REQUIRES_VIOLATION, l4_destroyErr6REQUIRES_VIOLATION, l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, l4_destroyErr5REQUIRES_VIOLATION, l4_destroyErr0REQUIRES_VIOLATION, l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_insertErr4REQUIRES_VIOLATION, l2_insertErr2REQUIRES_VIOLATION, l2_insertErr3REQUIRES_VIOLATION, l2_insertErr1REQUIRES_VIOLATION, l2_insertErr5REQUIRES_VIOLATION, l2_insertErr0REQUIRES_VIOLATION, l1_destroyErr3REQUIRES_VIOLATION, l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr2REQUIRES_VIOLATION, l1_destroyErr0REQUIRES_VIOLATION, l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l1_destroyErr1REQUIRES_VIOLATION, l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l3_insertErr4REQUIRES_VIOLATION, l3_insertErr2REQUIRES_VIOLATION, l3_insertErr3REQUIRES_VIOLATION, l3_insertErr1REQUIRES_VIOLATION, l3_insertErr5REQUIRES_VIOLATION, l3_insertErr0REQUIRES_VIOLATION, l1_insertErr3REQUIRES_VIOLATION, l1_insertErr2REQUIRES_VIOLATION, l1_insertErr4REQUIRES_VIOLATION, l1_insertErr0REQUIRES_VIOLATION, l1_insertErr5REQUIRES_VIOLATION, l1_insertErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, calloc_modelErr0REQUIRES_VIOLATION, calloc_modelErr1REQUIRES_VIOLATION, l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr3REQUIRES_VIOLATION, l0_destroyErr2REQUIRES_VIOLATION, l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr1REQUIRES_VIOLATION, l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l0_destroyErr0REQUIRES_VIOLATION, l4_insertErr4REQUIRES_VIOLATION, l4_insertErr3REQUIRES_VIOLATION, l4_insertErr2REQUIRES_VIOLATION, l4_insertErr7REQUIRES_VIOLATION, l4_insertErr1REQUIRES_VIOLATION, l4_insertErr6REQUIRES_VIOLATION, l4_insertErr0REQUIRES_VIOLATION, l4_insertErr5REQUIRES_VIOLATION, l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr1REQUIRES_VIOLATION, l2_destroyErr0REQUIRES_VIOLATION, l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, l2_destroyErr3REQUIRES_VIOLATION, l2_destroyErr2REQUIRES_VIOLATION]=== [2019-11-20 02:32:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:32:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1321692779, now seen corresponding path program 3 times [2019-11-20 02:32:57,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:32:57,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [654136335] [2019-11-20 02:32:57,897 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec805848-bd0e-4de0-be55-0c177b1015e0/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:58,350 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-20 02:32:58,351 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 02:32:58,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 02:32:58,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:32:58,372 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 02:32:58,373 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:32:58,375 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:32:58,375 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:32:58,375 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 02:32:58,526 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 02:32:58,526 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:32:58,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:32:58,529 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 02:32:58,530 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:5 [2019-11-20 02:32:58,650 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 02:32:58,664 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:32:58,664 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 25 [2019-11-20 02:32:58,665 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:32:58,681 INFO L567 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-11-20 02:32:58,681 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 02:32:58,682 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2019-11-20 02:32:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 259 proven. 7 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2019-11-20 02:32:58,721 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:32:59,209 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:32:59,210 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 02:32:59,214 INFO L168 Benchmark]: Toolchain (without parser) took 23657.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 939.4 MB in the beginning and 904.6 MB in the end (delta: 34.8 MB). Peak memory consumption was 347.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:32:59,214 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:32:59,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-20 02:32:59,215 INFO L168 Benchmark]: Boogie Preprocessor took 133.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:32:59,216 INFO L168 Benchmark]: RCFGBuilder took 1564.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:32:59,216 INFO L168 Benchmark]: TraceAbstraction took 21126.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.8 MB). Free memory was 1.0 GB in the beginning and 904.6 MB in the end (delta: 115.2 MB). Peak memory consumption was 271.9 MB. Max. memory is 11.5 GB. [2019-11-20 02:32:59,219 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 826.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 133.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1564.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21126.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 156.8 MB). Free memory was 1.0 GB in the beginning and 904.6 MB in the end (delta: 115.2 MB). Peak memory consumption was 271.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...