./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0cf6b9a1a7372eb466349e319faa44cf865bdad ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:06:04,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:06:04,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:06:04,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:06:04,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:06:04,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:06:04,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:06:04,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:06:04,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:06:04,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:06:04,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:06:04,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:06:04,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:06:04,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:06:04,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:06:04,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:06:04,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:06:04,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:06:04,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:06:04,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:06:04,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:06:04,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:06:04,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:06:04,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:06:04,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:06:04,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:06:04,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:06:04,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:06:04,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:06:04,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:06:04,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:06:04,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:06:04,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:06:04,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:06:04,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:06:04,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:06:04,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:06:04,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:06:04,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:06:04,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:06:04,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:06:04,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-12-07 12:06:04,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:06:04,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:06:04,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:06:04,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:06:04,379 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:06:04,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 12:06:04,380 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 12:06:04,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:06:04,381 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:06:04,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:06:04,381 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:06:04,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:06:04,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:06:04,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:06:04,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:06:04,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0cf6b9a1a7372eb466349e319faa44cf865bdad [2019-12-07 12:06:04,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:06:04,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:06:04,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:06:04,505 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:06:04,505 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:06:04,506 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/../../sv-benchmarks/c/list-properties/simple-1.i [2019-12-07 12:06:04,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/data/8470536b4/27af71e0592049e58af6231b9d12e527/FLAG2bbdc3d11 [2019-12-07 12:06:04,905 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:06:04,906 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/sv-benchmarks/c/list-properties/simple-1.i [2019-12-07 12:06:04,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/data/8470536b4/27af71e0592049e58af6231b9d12e527/FLAG2bbdc3d11 [2019-12-07 12:06:04,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/data/8470536b4/27af71e0592049e58af6231b9d12e527 [2019-12-07 12:06:04,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:06:04,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 12:06:04,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:06:04,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:06:04,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:06:04,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:06:04" (1/1) ... [2019-12-07 12:06:04,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f901aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:04, skipping insertion in model container [2019-12-07 12:06:04,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:06:04" (1/1) ... [2019-12-07 12:06:04,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:06:04,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:06:05,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:06:05,177 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:06:05,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:06:05,237 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:06:05,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05 WrapperNode [2019-12-07 12:06:05,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:06:05,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:06:05,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:06:05,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:06:05,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... [2019-12-07 12:06:05,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:06:05,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:06:05,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:06:05,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:06:05,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 12:06:05,314 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-12-07 12:06:05,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 12:06:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 12:06:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 12:06:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 12:06:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 12:06:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 12:06:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 12:06:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 12:06:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:06:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:06:05,485 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-12-07 12:06:05,578 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:06:05,578 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-12-07 12:06:05,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:06:05 BoogieIcfgContainer [2019-12-07 12:06:05,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:06:05,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:06:05,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:06:05,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:06:05,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:06:04" (1/3) ... [2019-12-07 12:06:05,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12727445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:06:05, skipping insertion in model container [2019-12-07 12:06:05,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:05" (2/3) ... [2019-12-07 12:06:05,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12727445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:06:05, skipping insertion in model container [2019-12-07 12:06:05,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:06:05" (3/3) ... [2019-12-07 12:06:05,583 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-1.i [2019-12-07 12:06:05,589 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:06:05,594 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2019-12-07 12:06:05,601 INFO L249 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2019-12-07 12:06:05,613 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:06:05,613 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 12:06:05,613 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:06:05,613 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:06:05,613 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:06:05,613 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:06:05,613 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:06:05,613 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:06:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2019-12-07 12:06:05,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:06:05,629 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:05,630 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:05,630 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:05,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1889428658, now seen corresponding path program 1 times [2019-12-07 12:06:05,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:05,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839564688] [2019-12-07 12:06:05,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:05,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839564688] [2019-12-07 12:06:05,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:05,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:06:05,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208690731] [2019-12-07 12:06:05,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:06:05,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:05,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:06:05,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:06:05,775 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2019-12-07 12:06:05,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:05,886 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2019-12-07 12:06:05,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:06:05,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-07 12:06:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:05,892 INFO L225 Difference]: With dead ends: 52 [2019-12-07 12:06:05,892 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 12:06:05,893 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:06:05,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 12:06:05,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 12:06:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 12:06:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2019-12-07 12:06:05,918 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 9 [2019-12-07 12:06:05,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:05,918 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2019-12-07 12:06:05,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:06:05,918 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2019-12-07 12:06:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:06:05,919 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:05,919 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:05,919 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:05,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1889428659, now seen corresponding path program 1 times [2019-12-07 12:06:05,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:05,919 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104341870] [2019-12-07 12:06:05,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:05,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:05,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104341870] [2019-12-07 12:06:05,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:05,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:06:05,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738403392] [2019-12-07 12:06:05,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:06:05,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:05,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:06:05,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:06:05,973 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 4 states. [2019-12-07 12:06:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:06,037 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2019-12-07 12:06:06,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:06:06,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-07 12:06:06,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:06,038 INFO L225 Difference]: With dead ends: 44 [2019-12-07 12:06:06,038 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 12:06:06,038 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:06:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 12:06:06,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-12-07 12:06:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 12:06:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2019-12-07 12:06:06,042 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 9 [2019-12-07 12:06:06,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:06,042 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2019-12-07 12:06:06,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:06:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2019-12-07 12:06:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:06:06,043 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:06,043 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:06,043 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:06,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:06,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1872231771, now seen corresponding path program 1 times [2019-12-07 12:06:06,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:06,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818872613] [2019-12-07 12:06:06,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:06,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818872613] [2019-12-07 12:06:06,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:06,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:06:06,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331264673] [2019-12-07 12:06:06,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:06:06,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:06,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:06:06,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:06:06,096 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 5 states. [2019-12-07 12:06:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:06,208 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2019-12-07 12:06:06,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:06:06,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 12:06:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:06,210 INFO L225 Difference]: With dead ends: 75 [2019-12-07 12:06:06,210 INFO L226 Difference]: Without dead ends: 75 [2019-12-07 12:06:06,210 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:06:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-12-07 12:06:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2019-12-07 12:06:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-07 12:06:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-12-07 12:06:06,215 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 12 [2019-12-07 12:06:06,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:06,215 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-12-07 12:06:06,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:06:06,216 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-12-07 12:06:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:06:06,216 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:06,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:06,216 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:06,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1872231770, now seen corresponding path program 1 times [2019-12-07 12:06:06,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:06,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651729440] [2019-12-07 12:06:06,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:06,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651729440] [2019-12-07 12:06:06,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:06,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:06:06,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102098736] [2019-12-07 12:06:06,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:06:06,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:06,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:06:06,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:06:06,268 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 5 states. [2019-12-07 12:06:06,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:06,356 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2019-12-07 12:06:06,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:06:06,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 12:06:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:06,357 INFO L225 Difference]: With dead ends: 64 [2019-12-07 12:06:06,357 INFO L226 Difference]: Without dead ends: 64 [2019-12-07 12:06:06,358 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:06:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-12-07 12:06:06,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 56. [2019-12-07 12:06:06,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 12:06:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2019-12-07 12:06:06,362 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 12 [2019-12-07 12:06:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:06,362 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2019-12-07 12:06:06,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:06:06,362 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2019-12-07 12:06:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 12:06:06,363 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:06,363 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:06,363 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:06,363 INFO L82 PathProgramCache]: Analyzing trace with hash -176116736, now seen corresponding path program 1 times [2019-12-07 12:06:06,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:06,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267449902] [2019-12-07 12:06:06,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:06,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267449902] [2019-12-07 12:06:06,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:06,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 12:06:06,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403783918] [2019-12-07 12:06:06,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:06:06,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:06,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:06:06,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:06:06,407 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 6 states. [2019-12-07 12:06:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:06,483 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2019-12-07 12:06:06,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:06:06,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 12:06:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:06,484 INFO L225 Difference]: With dead ends: 61 [2019-12-07 12:06:06,484 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 12:06:06,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:06:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 12:06:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2019-12-07 12:06:06,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 12:06:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2019-12-07 12:06:06,488 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 17 [2019-12-07 12:06:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:06,488 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2019-12-07 12:06:06,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:06:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2019-12-07 12:06:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:06:06,489 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:06,489 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:06,489 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:06,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:06,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1164610614, now seen corresponding path program 1 times [2019-12-07 12:06:06,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:06,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189450349] [2019-12-07 12:06:06,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:06,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189450349] [2019-12-07 12:06:06,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:06,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 12:06:06,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901899277] [2019-12-07 12:06:06,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:06:06,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:06,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:06:06,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:06:06,557 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 8 states. [2019-12-07 12:06:06,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:06,678 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2019-12-07 12:06:06,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:06:06,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2019-12-07 12:06:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:06,679 INFO L225 Difference]: With dead ends: 77 [2019-12-07 12:06:06,679 INFO L226 Difference]: Without dead ends: 77 [2019-12-07 12:06:06,679 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:06:06,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-12-07 12:06:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 57. [2019-12-07 12:06:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 12:06:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2019-12-07 12:06:06,684 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 18 [2019-12-07 12:06:06,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:06,684 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2019-12-07 12:06:06,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:06:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2019-12-07 12:06:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 12:06:06,685 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:06,685 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:06,685 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:06,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1067762024, now seen corresponding path program 1 times [2019-12-07 12:06:06,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:06,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646307898] [2019-12-07 12:06:06,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:06,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646307898] [2019-12-07 12:06:06,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:06,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 12:06:06,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927594992] [2019-12-07 12:06:06,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:06:06,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:06,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:06:06,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:06:06,746 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 7 states. [2019-12-07 12:06:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:06,876 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2019-12-07 12:06:06,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:06:06,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-12-07 12:06:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:06,877 INFO L225 Difference]: With dead ends: 69 [2019-12-07 12:06:06,877 INFO L226 Difference]: Without dead ends: 69 [2019-12-07 12:06:06,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:06:06,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-12-07 12:06:06,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 55. [2019-12-07 12:06:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 12:06:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2019-12-07 12:06:06,881 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 20 [2019-12-07 12:06:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:06,881 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2019-12-07 12:06:06,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:06:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2019-12-07 12:06:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 12:06:06,882 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:06,882 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:06,882 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1067762023, now seen corresponding path program 1 times [2019-12-07 12:06:06,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:06,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867415826] [2019-12-07 12:06:06,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:06,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867415826] [2019-12-07 12:06:06,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:06,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 12:06:06,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009042537] [2019-12-07 12:06:06,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:06:06,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:06,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:06:06,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:06:06,949 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 7 states. [2019-12-07 12:06:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:07,115 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2019-12-07 12:06:07,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:06:07,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-12-07 12:06:07,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:07,116 INFO L225 Difference]: With dead ends: 65 [2019-12-07 12:06:07,116 INFO L226 Difference]: Without dead ends: 65 [2019-12-07 12:06:07,116 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:06:07,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-12-07 12:06:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2019-12-07 12:06:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 12:06:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2019-12-07 12:06:07,120 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 20 [2019-12-07 12:06:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:07,120 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2019-12-07 12:06:07,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:06:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2019-12-07 12:06:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 12:06:07,121 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:07,121 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:07,121 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:07,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:07,122 INFO L82 PathProgramCache]: Analyzing trace with hash -164132145, now seen corresponding path program 1 times [2019-12-07 12:06:07,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:07,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686067097] [2019-12-07 12:06:07,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:07,216 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686067097] [2019-12-07 12:06:07,216 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205733179] [2019-12-07 12:06:07,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:06:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:07,278 INFO L264 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2019-12-07 12:06:07,281 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:06:07,346 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-12-07 12:06:07,347 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:06:07,352 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:06:07,354 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-12-07 12:06:07,354 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:06:07,358 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:06:07,358 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:06:07,358 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2019-12-07 12:06:07,381 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-12-07 12:06:07,382 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:06:07,389 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:06:07,390 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-12-07 12:06:07,390 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 12:06:07,393 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:06:07,393 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:06:07,393 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-12-07 12:06:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:06:07,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 12:06:07,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 12 [2019-12-07 12:06:07,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303556644] [2019-12-07 12:06:07,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 12:06:07,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:06:07,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 12:06:07,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:06:07,396 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 12 states. [2019-12-07 12:06:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:07,582 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2019-12-07 12:06:07,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:06:07,582 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2019-12-07 12:06:07,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:07,582 INFO L225 Difference]: With dead ends: 61 [2019-12-07 12:06:07,583 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 12:06:07,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-12-07 12:06:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 12:06:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2019-12-07 12:06:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-07 12:06:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2019-12-07 12:06:07,586 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 21 [2019-12-07 12:06:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:07,587 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2019-12-07 12:06:07,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 12:06:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2019-12-07 12:06:07,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 12:06:07,588 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:07,588 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:07,788 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:06:07,789 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr17ENSURES_VIOLATIONMEMORY_LEAK, mainErr14ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 12:06:07,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:07,789 INFO L82 PathProgramCache]: Analyzing trace with hash -793130470, now seen corresponding path program 1 times [2019-12-07 12:06:07,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:06:07,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904555334] [2019-12-07 12:06:07,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:06:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:06:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:06:07,860 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:06:07,860 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:06:07,869 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 12:06:07,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:06:07 BoogieIcfgContainer [2019-12-07 12:06:07,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:06:07,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:06:07,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:06:07,882 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:06:07,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:06:05" (3/4) ... [2019-12-07 12:06:07,884 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:06:07,887 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 12:06:07,919 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2a706f0f-5e0e-45da-aa29-dae58f942da6/bin/uautomizer/witness.graphml [2019-12-07 12:06:07,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:06:07,920 INFO L168 Benchmark]: Toolchain (without parser) took 2991.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 939.3 MB in the beginning and 898.8 MB in the end (delta: 40.5 MB). Peak memory consumption was 141.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:07,920 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:06:07,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:07,921 INFO L168 Benchmark]: Boogie Preprocessor took 36.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:07,922 INFO L168 Benchmark]: RCFGBuilder took 304.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:07,922 INFO L168 Benchmark]: TraceAbstraction took 2301.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 900.6 MB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:07,922 INFO L168 Benchmark]: Witness Printer took 37.82 ms. Allocated memory is still 1.1 GB. Free memory was 900.6 MB in the beginning and 898.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:07,924 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 304.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2301.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 900.6 MB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.82 ms. Allocated memory is still 1.1 GB. Free memory was 900.6 MB in the beginning and 898.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L522] COND FALSE !(a == 0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L523] List t; [L524] List p = a; VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L525] a->h = 2 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L526] COND FALSE !(__VERIFIER_nondet_int()) [L533] p->h = 2 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L534] p->n = 0 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L535] p = a VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L536] COND TRUE p!=0 VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L537] EXPR p->h VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=2] [L537] COND FALSE !(p->h != 2) [L540] EXPR p->n VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->n={0:0}] [L540] p = p->n [L536] COND FALSE !(p!=0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={0:0}] [L542] return 0; VAL [\result=0, a={-1:0}, malloc(sizeof(struct node))={-1:0}, p={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 69 locations, 18 error locations. Result: UNSAFE, OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 241 SDtfs, 540 SDslu, 449 SDs, 0 SdLazy, 1086 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=6, 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, 107 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 14255 SizeOfPredicates, 11 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...