./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/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 ab87ef7cc863b18816ae397a50b6c6e9fb3e753d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:14,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:14,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:14,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:14,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:14,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:14,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:14,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:14,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:14,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:14,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:14,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:14,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:14,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:14,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:14,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:14,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:14,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:14,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:14,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:14,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:14,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:14,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:14,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:14,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:14,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:14,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:14,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:14,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:14,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:14,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:14,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:14,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:14,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:14,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:14,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:14,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:14,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:14,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:14,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:14,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:14,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:20:14,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:14,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:14,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:14,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:14,464 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:14,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:14,465 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:20:14,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:14,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:14,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:20:14,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:14,468 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:20:14,468 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:20:14,468 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:20:14,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:20:14,469 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:20:14,469 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:20:14,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:14,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:14,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:14,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:20:14,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:20:14,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:14,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:14,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:20:14,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:14,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:20:14,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:14,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab87ef7cc863b18816ae397a50b6c6e9fb3e753d [2020-11-28 03:20:14,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:14,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:14,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:14,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:14,818 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:14,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-11-28 03:20:14,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/data/3d0d5c55c/64dee57b56124017ab385878d1d522c0/FLAGd3b6b71e1 [2020-11-28 03:20:15,531 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:15,532 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-11-28 03:20:15,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/data/3d0d5c55c/64dee57b56124017ab385878d1d522c0/FLAGd3b6b71e1 [2020-11-28 03:20:15,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/data/3d0d5c55c/64dee57b56124017ab385878d1d522c0 [2020-11-28 03:20:15,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:15,821 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:20:15,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:15,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:15,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:15,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:15" (1/1) ... [2020-11-28 03:20:15,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2001597b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:15, skipping insertion in model container [2020-11-28 03:20:15,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:15" (1/1) ... [2020-11-28 03:20:15,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:15,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:16,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:16,255 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:16,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:16,375 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:16,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16 WrapperNode [2020-11-28 03:20:16,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:16,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:16,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:16,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:16,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... [2020-11-28 03:20:16,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:16,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:16,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:16,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:16,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:20:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:20:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:20:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:20:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:20:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:20:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:20:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2020-11-28 03:20:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:20:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:20:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:20:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:20:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:20:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:20:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:20:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:20:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:20:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:20:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:20:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:20:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:20:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:20:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:20:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:20:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:20:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:20:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:20:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:20:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:20:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:20:16,584 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:20:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:20:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:20:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:20:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:20:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:20:16,585 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:20:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:20:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:20:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:20:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:20:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:20:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:20:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:20:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:20:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:20:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:20:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:20:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:20:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:20:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:20:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:20:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:20:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:20:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:20:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:20:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:20:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:20:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:20:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:20:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:20:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:20:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:20:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:20:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:20:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:20:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:20:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:20:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:20:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:20:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:20:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:20:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:20:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:20:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:20:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:20:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:20:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:20:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:20:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:20:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:20:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:20:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:20:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:20:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:20:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:20:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:20:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:20:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:20:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:20:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:20:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:20:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:20:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:20:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:20:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:20:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:20:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:20:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:20:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:20:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:20:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:20:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:20:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:20:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:20:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:20:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:17,357 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:17,357 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-28 03:20:17,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:17 BoogieIcfgContainer [2020-11-28 03:20:17,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:17,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:20:17,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:20:17,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:20:17,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:15" (1/3) ... [2020-11-28 03:20:17,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53322113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:17, skipping insertion in model container [2020-11-28 03:20:17,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:16" (2/3) ... [2020-11-28 03:20:17,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53322113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:17, skipping insertion in model container [2020-11-28 03:20:17,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:17" (3/3) ... [2020-11-28 03:20:17,380 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2020-11-28 03:20:17,397 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:20:17,403 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2020-11-28 03:20:17,420 INFO L253 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2020-11-28 03:20:17,462 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:20:17,463 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:20:17,464 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:20:17,469 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:17,469 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:17,469 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:20:17,469 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:17,470 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:20:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2020-11-28 03:20:17,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:20:17,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:17,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:17,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:17,523 INFO L82 PathProgramCache]: Analyzing trace with hash 743499951, now seen corresponding path program 1 times [2020-11-28 03:20:17,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:17,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560157271] [2020-11-28 03:20:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:17,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:17,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560157271] [2020-11-28 03:20:17,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:17,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:17,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670023164] [2020-11-28 03:20:17,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:17,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:17,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:17,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:17,918 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 4 states. [2020-11-28 03:20:18,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:18,186 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-11-28 03:20:18,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:18,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-28 03:20:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:18,208 INFO L225 Difference]: With dead ends: 62 [2020-11-28 03:20:18,208 INFO L226 Difference]: Without dead ends: 59 [2020-11-28 03:20:18,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:18,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-28 03:20:18,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-28 03:20:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-28 03:20:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-11-28 03:20:18,263 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 9 [2020-11-28 03:20:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:18,263 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-11-28 03:20:18,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-11-28 03:20:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:20:18,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:18,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:18,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:20:18,265 INFO L429 AbstractCegarLoop]: === Iteration 2 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:18,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:18,266 INFO L82 PathProgramCache]: Analyzing trace with hash 743499952, now seen corresponding path program 1 times [2020-11-28 03:20:18,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:18,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416967102] [2020-11-28 03:20:18,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:18,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:18,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416967102] [2020-11-28 03:20:18,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:18,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:18,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500939483] [2020-11-28 03:20:18,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:18,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:18,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:18,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:18,388 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 4 states. [2020-11-28 03:20:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:18,548 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-11-28 03:20:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:18,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-28 03:20:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:18,550 INFO L225 Difference]: With dead ends: 54 [2020-11-28 03:20:18,550 INFO L226 Difference]: Without dead ends: 54 [2020-11-28 03:20:18,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-28 03:20:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-28 03:20:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-28 03:20:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-11-28 03:20:18,559 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 9 [2020-11-28 03:20:18,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:18,559 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-11-28 03:20:18,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-11-28 03:20:18,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:20:18,560 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:18,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:18,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:20:18,561 INFO L429 AbstractCegarLoop]: === Iteration 3 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:18,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:18,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1573661992, now seen corresponding path program 1 times [2020-11-28 03:20:18,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:18,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380012340] [2020-11-28 03:20:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:18,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:18,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380012340] [2020-11-28 03:20:18,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:18,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:18,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541738092] [2020-11-28 03:20:18,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:18,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:18,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:18,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:18,632 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 4 states. [2020-11-28 03:20:18,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:18,799 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-11-28 03:20:18,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:18,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 03:20:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:18,801 INFO L225 Difference]: With dead ends: 52 [2020-11-28 03:20:18,801 INFO L226 Difference]: Without dead ends: 52 [2020-11-28 03:20:18,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-28 03:20:18,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-28 03:20:18,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-28 03:20:18,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2020-11-28 03:20:18,808 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 10 [2020-11-28 03:20:18,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:18,809 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2020-11-28 03:20:18,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2020-11-28 03:20:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:20:18,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:18,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:18,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:20:18,815 INFO L429 AbstractCegarLoop]: === Iteration 4 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:18,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1573661993, now seen corresponding path program 1 times [2020-11-28 03:20:18,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:18,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239774996] [2020-11-28 03:20:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:18,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:18,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239774996] [2020-11-28 03:20:18,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:18,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:18,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056333101] [2020-11-28 03:20:18,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:18,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:18,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:18,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:18,937 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 4 states. [2020-11-28 03:20:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:19,072 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-11-28 03:20:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:19,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 03:20:19,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:19,074 INFO L225 Difference]: With dead ends: 50 [2020-11-28 03:20:19,074 INFO L226 Difference]: Without dead ends: 50 [2020-11-28 03:20:19,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-11-28 03:20:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-11-28 03:20:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-28 03:20:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-11-28 03:20:19,081 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 10 [2020-11-28 03:20:19,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:19,081 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-11-28 03:20:19,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-11-28 03:20:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:20:19,082 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:19,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:19,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:20:19,083 INFO L429 AbstractCegarLoop]: === Iteration 5 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:19,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:19,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1538881490, now seen corresponding path program 1 times [2020-11-28 03:20:19,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:19,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016912643] [2020-11-28 03:20:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:19,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016912643] [2020-11-28 03:20:19,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:19,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:19,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038704886] [2020-11-28 03:20:19,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:19,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:19,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:19,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,170 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 4 states. [2020-11-28 03:20:19,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:19,306 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-11-28 03:20:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:19,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:20:19,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:19,307 INFO L225 Difference]: With dead ends: 46 [2020-11-28 03:20:19,307 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 03:20:19,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 03:20:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-28 03:20:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-28 03:20:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-11-28 03:20:19,313 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 11 [2020-11-28 03:20:19,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:19,313 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-11-28 03:20:19,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-11-28 03:20:19,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:20:19,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:19,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:19,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:20:19,318 INFO L429 AbstractCegarLoop]: === Iteration 6 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:19,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1538881491, now seen corresponding path program 1 times [2020-11-28 03:20:19,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:19,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401401536] [2020-11-28 03:20:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:19,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401401536] [2020-11-28 03:20:19,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:19,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:19,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332098628] [2020-11-28 03:20:19,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:19,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:19,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:19,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,393 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 4 states. [2020-11-28 03:20:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:19,526 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-11-28 03:20:19,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:19,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:20:19,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:19,528 INFO L225 Difference]: With dead ends: 42 [2020-11-28 03:20:19,528 INFO L226 Difference]: Without dead ends: 42 [2020-11-28 03:20:19,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-28 03:20:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-28 03:20:19,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-28 03:20:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-11-28 03:20:19,533 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 11 [2020-11-28 03:20:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:19,533 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-11-28 03:20:19,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-11-28 03:20:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:20:19,534 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:19,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:19,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:20:19,535 INFO L429 AbstractCegarLoop]: === Iteration 7 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:19,535 INFO L82 PathProgramCache]: Analyzing trace with hash 460685931, now seen corresponding path program 1 times [2020-11-28 03:20:19,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:19,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567473000] [2020-11-28 03:20:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:19,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567473000] [2020-11-28 03:20:19,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:19,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:19,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878603481] [2020-11-28 03:20:19,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:19,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:19,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:19,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,600 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 4 states. [2020-11-28 03:20:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:19,698 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-11-28 03:20:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:19,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:20:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:19,700 INFO L225 Difference]: With dead ends: 38 [2020-11-28 03:20:19,700 INFO L226 Difference]: Without dead ends: 38 [2020-11-28 03:20:19,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-28 03:20:19,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-28 03:20:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-28 03:20:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-11-28 03:20:19,706 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 12 [2020-11-28 03:20:19,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:19,706 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-11-28 03:20:19,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:19,707 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-11-28 03:20:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:20:19,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:19,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:19,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:20:19,708 INFO L429 AbstractCegarLoop]: === Iteration 8 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:19,708 INFO L82 PathProgramCache]: Analyzing trace with hash 460685932, now seen corresponding path program 1 times [2020-11-28 03:20:19,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:19,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364168596] [2020-11-28 03:20:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:19,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364168596] [2020-11-28 03:20:19,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:19,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:19,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323390055] [2020-11-28 03:20:19,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:20:19,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:19,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:20:19,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,800 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 4 states. [2020-11-28 03:20:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:19,898 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-11-28 03:20:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:20:19,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:20:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:19,899 INFO L225 Difference]: With dead ends: 34 [2020-11-28 03:20:19,899 INFO L226 Difference]: Without dead ends: 34 [2020-11-28 03:20:19,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:20:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-28 03:20:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-28 03:20:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-28 03:20:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-11-28 03:20:19,903 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2020-11-28 03:20:19,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:19,903 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-11-28 03:20:19,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:20:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-11-28 03:20:19,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:20:19,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:20:19,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:20:19,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:20:19,905 INFO L429 AbstractCegarLoop]: === Iteration 9 === [test_funErr25REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr24REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr28REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr26REQUIRES_VIOLATION, test_funErr27REQUIRES_VIOLATION, test_funErr20REQUIRES_VIOLATION, test_funErr18REQUIRES_VIOLATION, test_funErr19REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr22REQUIRES_VIOLATION, test_funErr23REQUIRES_VIOLATION, test_funErr21REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr14REQUIRES_VIOLATION, test_funErr15REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr17REQUIRES_VIOLATION, test_funErr16REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, test_funErr29REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 03:20:19,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:19,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1533919015, now seen corresponding path program 1 times [2020-11-28 03:20:19,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:19,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954072618] [2020-11-28 03:20:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:20,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:20:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-28 03:20:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:20,329 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-11-28 03:20:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:20,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954072618] [2020-11-28 03:20:20,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:20,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:20:20,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765219221] [2020-11-28 03:20:20,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:20:20,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:20,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:20:20,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:20:20,371 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 6 states. [2020-11-28 03:20:20,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:20,553 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-28 03:20:20,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:20:20,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-11-28 03:20:20,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:20:20,554 INFO L225 Difference]: With dead ends: 33 [2020-11-28 03:20:20,554 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:20:20,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:20:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:20:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:20:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:20:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:20:20,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-28 03:20:20,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:20:20,556 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:20,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:20:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:20:20,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:20:20,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:20:20,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:20 BoogieIcfgContainer [2020-11-28 03:20:20,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:20:20,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:20,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:20,564 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:20,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:17" (3/4) ... [2020-11-28 03:20:20,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:20:20,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-28 03:20:20,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-11-28 03:20:20,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2020-11-28 03:20:20,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-11-28 03:20:20,577 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2020-11-28 03:20:20,577 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2020-11-28 03:20:20,577 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-28 03:20:20,578 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2020-11-28 03:20:20,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-28 03:20:20,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 03:20:20,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:20:20,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:20:20,654 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_56971d3d-994d-4f62-a8a7-b02ccdd8bfe6/bin/uautomizer/witness.graphml [2020-11-28 03:20:20,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:20,656 INFO L168 Benchmark]: Toolchain (without parser) took 4834.30 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 69.3 MB in the beginning and 78.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:20,656 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 77.6 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:20,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.39 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 62.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:20,658 INFO L168 Benchmark]: Boogie Preprocessor took 101.63 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 60.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:20,658 INFO L168 Benchmark]: RCFGBuilder took 878.86 ms. Allocated memory is still 96.5 MB. Free memory was 60.1 MB in the beginning and 57.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:20,659 INFO L168 Benchmark]: TraceAbstraction took 3201.58 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 57.1 MB in the beginning and 82.7 MB in the end (delta: -25.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:20,659 INFO L168 Benchmark]: Witness Printer took 91.01 ms. Allocated memory is still 132.1 MB. Free memory was 82.7 MB in the beginning and 78.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:20,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 77.6 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 554.39 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 62.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.63 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 60.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 878.86 ms. Allocated memory is still 96.5 MB. Free memory was 60.1 MB in the beginning and 57.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3201.58 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 57.1 MB in the beginning and 82.7 MB in the end (delta: -25.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 91.01 ms. Allocated memory is still 132.1 MB. Free memory was 82.7 MB in the beginning and 78.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 82 locations, 31 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 301 SDslu, 95 SDs, 0 SdLazy, 660 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 15676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...