./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/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 7716826f9b443d6310df8de2d829a4d2f71b85a7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 18:22:19,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:22:19,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:22:19,306 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:22:19,306 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:22:19,307 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:22:19,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:22:19,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:22:19,310 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:22:19,310 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:22:19,311 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:22:19,311 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:22:19,312 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:22:19,312 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:22:19,313 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:22:19,314 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:22:19,314 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:22:19,316 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:22:19,317 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:22:19,318 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:22:19,319 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:22:19,320 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:22:19,321 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:22:19,321 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:22:19,321 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:22:19,322 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:22:19,323 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:22:19,323 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:22:19,324 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:22:19,325 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:22:19,325 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:22:19,325 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:22:19,326 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:22:19,326 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:22:19,326 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:22:19,327 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:22:19,327 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-12-01 18:22:19,334 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:22:19,334 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:22:19,334 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 18:22:19,335 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 18:22:19,335 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:22:19,335 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:22:19,336 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 18:22:19,336 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 18:22:19,336 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:22:19,337 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 18:22:19,337 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 18:22:19,337 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 18:22:19,337 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/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 -> 7716826f9b443d6310df8de2d829a4d2f71b85a7 [2018-12-01 18:22:19,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:22:19,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:22:19,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:22:19,363 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:22:19,363 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:22:19,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/../../sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i [2018-12-01 18:22:19,399 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/data/396a55e3a/090451bc8db2461b8755df430b0a317d/FLAGc74f4ef38 [2018-12-01 18:22:19,872 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:22:19,872 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/sv-benchmarks/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i [2018-12-01 18:22:19,878 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/data/396a55e3a/090451bc8db2461b8755df430b0a317d/FLAGc74f4ef38 [2018-12-01 18:22:20,238 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/data/396a55e3a/090451bc8db2461b8755df430b0a317d [2018-12-01 18:22:20,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:22:20,242 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 18:22:20,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:22:20,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:22:20,247 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:22:20,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c26117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20, skipping insertion in model container [2018-12-01 18:22:20,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:22:20,280 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:22:20,417 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:22:20,457 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:22:20,479 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:22:20,512 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:22:20,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20 WrapperNode [2018-12-01 18:22:20,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:22:20,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:22:20,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:22:20,513 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:22:20,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... [2018-12-01 18:22:20,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:22:20,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:22:20,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:22:20,545 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:22:20,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/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 [2018-12-01 18:22:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 18:22:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:22:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-01 18:22:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 18:22:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 18:22:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 18:22:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 18:22:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 18:22:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 18:22:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 18:22:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:22:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 18:22:20,810 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:22:20,811 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-01 18:22:20,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:22:20 BoogieIcfgContainer [2018-12-01 18:22:20,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:22:20,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 18:22:20,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 18:22:20,814 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 18:22:20,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 06:22:20" (1/3) ... [2018-12-01 18:22:20,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce50df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 06:22:20, skipping insertion in model container [2018-12-01 18:22:20,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:22:20" (2/3) ... [2018-12-01 18:22:20,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce50df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 06:22:20, skipping insertion in model container [2018-12-01 18:22:20,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:22:20" (3/3) ... [2018-12-01 18:22:20,816 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_false-unreach-call_false-valid-memcleanup.i [2018-12-01 18:22:20,824 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 18:22:20,831 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-01 18:22:20,840 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-01 18:22:20,854 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 18:22:20,855 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 18:22:20,855 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 18:22:20,855 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 18:22:20,855 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 18:22:20,855 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 18:22:20,855 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 18:22:20,855 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 18:22:20,855 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 18:22:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-12-01 18:22:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 18:22:20,869 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:20,869 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:20,870 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:20,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:20,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1369312263, now seen corresponding path program 1 times [2018-12-01 18:22:20,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:20,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:20,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:20,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:20,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:20,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:20,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 18:22:20,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 18:22:20,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 18:22:20,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 18:22:20,974 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2018-12-01 18:22:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,019 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-12-01 18:22:21,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 18:22:21,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-01 18:22:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,025 INFO L225 Difference]: With dead ends: 51 [2018-12-01 18:22:21,025 INFO L226 Difference]: Without dead ends: 43 [2018-12-01 18:22:21,026 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 18:22:21,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-01 18:22:21,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-01 18:22:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-01 18:22:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-12-01 18:22:21,046 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 9 [2018-12-01 18:22:21,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,047 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-12-01 18:22:21,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 18:22:21,047 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-12-01 18:22:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 18:22:21,047 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,047 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,048 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1369312264, now seen corresponding path program 1 times [2018-12-01 18:22:21,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:21,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 18:22:21,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 18:22:21,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 18:22:21,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 18:22:21,088 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 3 states. [2018-12-01 18:22:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,109 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-12-01 18:22:21,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 18:22:21,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-01 18:22:21,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,110 INFO L225 Difference]: With dead ends: 42 [2018-12-01 18:22:21,110 INFO L226 Difference]: Without dead ends: 42 [2018-12-01 18:22:21,110 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 18:22:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-01 18:22:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-01 18:22:21,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-01 18:22:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-12-01 18:22:21,113 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 9 [2018-12-01 18:22:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,113 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-12-01 18:22:21,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 18:22:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-12-01 18:22:21,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 18:22:21,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,114 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,114 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,114 INFO L82 PathProgramCache]: Analyzing trace with hash -417757206, now seen corresponding path program 1 times [2018-12-01 18:22:21,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:21,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 18:22:21,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 18:22:21,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 18:22:21,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 18:22:21,142 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 4 states. [2018-12-01 18:22:21,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,226 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2018-12-01 18:22:21,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 18:22:21,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-01 18:22:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,227 INFO L225 Difference]: With dead ends: 71 [2018-12-01 18:22:21,227 INFO L226 Difference]: Without dead ends: 71 [2018-12-01 18:22:21,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 18:22:21,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-01 18:22:21,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2018-12-01 18:22:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-01 18:22:21,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-12-01 18:22:21,230 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2018-12-01 18:22:21,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,231 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-12-01 18:22:21,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 18:22:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-12-01 18:22:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 18:22:21,231 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,231 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,231 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,231 INFO L82 PathProgramCache]: Analyzing trace with hash -417757205, now seen corresponding path program 1 times [2018-12-01 18:22:21,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:21,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 18:22:21,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 18:22:21,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 18:22:21,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 18:22:21,262 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 4 states. [2018-12-01 18:22:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,319 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-12-01 18:22:21,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 18:22:21,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-01 18:22:21,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,320 INFO L225 Difference]: With dead ends: 60 [2018-12-01 18:22:21,320 INFO L226 Difference]: Without dead ends: 60 [2018-12-01 18:22:21,320 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 18:22:21,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-01 18:22:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-12-01 18:22:21,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-01 18:22:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-12-01 18:22:21,323 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 12 [2018-12-01 18:22:21,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,323 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-12-01 18:22:21,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 18:22:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-12-01 18:22:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 18:22:21,324 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,324 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,324 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1889449163, now seen corresponding path program 1 times [2018-12-01 18:22:21,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:21,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 18:22:21,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 18:22:21,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 18:22:21,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 18:22:21,355 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 4 states. [2018-12-01 18:22:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,394 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-12-01 18:22:21,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 18:22:21,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-12-01 18:22:21,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,395 INFO L225 Difference]: With dead ends: 57 [2018-12-01 18:22:21,395 INFO L226 Difference]: Without dead ends: 57 [2018-12-01 18:22:21,396 INFO L631 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 [2018-12-01 18:22:21,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-01 18:22:21,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2018-12-01 18:22:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-01 18:22:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2018-12-01 18:22:21,400 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 17 [2018-12-01 18:22:21,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,400 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2018-12-01 18:22:21,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 18:22:21,401 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2018-12-01 18:22:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 18:22:21,401 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,401 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,402 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1561801763, now seen corresponding path program 1 times [2018-12-01 18:22:21,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:21,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 18:22:21,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 18:22:21,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 18:22:21,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 18:22:21,447 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 6 states. [2018-12-01 18:22:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,541 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-12-01 18:22:21,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 18:22:21,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-12-01 18:22:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,542 INFO L225 Difference]: With dead ends: 65 [2018-12-01 18:22:21,542 INFO L226 Difference]: Without dead ends: 65 [2018-12-01 18:22:21,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-01 18:22:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-01 18:22:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2018-12-01 18:22:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-01 18:22:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-12-01 18:22:21,547 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 20 [2018-12-01 18:22:21,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,547 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-12-01 18:22:21,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 18:22:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-12-01 18:22:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 18:22:21,548 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,548 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,549 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1561801762, now seen corresponding path program 1 times [2018-12-01 18:22:21,549 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:22:21,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 18:22:21,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-01 18:22:21,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-01 18:22:21,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-01 18:22:21,605 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-12-01 18:22:21,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:21,721 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2018-12-01 18:22:21,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 18:22:21,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-12-01 18:22:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:21,722 INFO L225 Difference]: With dead ends: 61 [2018-12-01 18:22:21,722 INFO L226 Difference]: Without dead ends: 61 [2018-12-01 18:22:21,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-12-01 18:22:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-01 18:22:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2018-12-01 18:22:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-01 18:22:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-12-01 18:22:21,724 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 20 [2018-12-01 18:22:21,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:21,724 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-12-01 18:22:21,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-01 18:22:21,724 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-12-01 18:22:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 18:22:21,725 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:21,725 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:22:21,725 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:21,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:21,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1699550851, now seen corresponding path program 1 times [2018-12-01 18:22:21,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:21,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:21,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-01 18:22:21,811 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-01 18:22:21,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:22:21,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:22:21,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-01 18:22:21,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-01 18:22:21,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-01 18:22:21,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-01 18:22:21,902 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,904 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,907 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2018-12-01 18:22:21,926 INFO L478 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 11 [2018-12-01 18:22:21,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 3 [2018-12-01 18:22:21,928 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,933 INFO L478 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 11 [2018-12-01 18:22:21,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 3 [2018-12-01 18:22:21,935 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,936 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-01 18:22:21,938 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-12-01 18:22:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:22:21,963 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-01 18:22:21,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 11 [2018-12-01 18:22:21,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-01 18:22:21,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-01 18:22:21,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-01 18:22:21,964 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 11 states. [2018-12-01 18:22:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:22:22,080 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-12-01 18:22:22,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 18:22:22,080 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-12-01 18:22:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:22:22,081 INFO L225 Difference]: With dead ends: 57 [2018-12-01 18:22:22,081 INFO L226 Difference]: Without dead ends: 57 [2018-12-01 18:22:22,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-12-01 18:22:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-01 18:22:22,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2018-12-01 18:22:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-01 18:22:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-12-01 18:22:22,085 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 21 [2018-12-01 18:22:22,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:22:22,085 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-12-01 18:22:22,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-01 18:22:22,085 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-12-01 18:22:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-01 18:22:22,086 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:22:22,086 INFO L402 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] [2018-12-01 18:22:22,086 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION]=== [2018-12-01 18:22:22,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:22:22,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1146467520, now seen corresponding path program 1 times [2018-12-01 18:22:22,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:22:22,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:22:22,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:22,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:22:22,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:22:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:22:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:22:22,112 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 18:22:22,120 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-01 18:22:22,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 06:22:22 BoogieIcfgContainer [2018-12-01 18:22:22,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 18:22:22,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:22:22,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:22:22,129 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:22:22,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:22:20" (3/4) ... [2018-12-01 18:22:22,131 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 18:22:22,132 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-01 18:22:22,157 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a905f83d-5127-4230-9e62-8698ae5de49d/bin-2019/uautomizer/witness.graphml [2018-12-01 18:22:22,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:22:22,157 INFO L168 Benchmark]: Toolchain (without parser) took 1916.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.6 MB in the beginning and 818.5 MB in the end (delta: 132.1 MB). Peak memory consumption was 261.1 MB. Max. memory is 11.5 GB. [2018-12-01 18:22:22,158 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:22:22,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:22:22,159 INFO L168 Benchmark]: Boogie Preprocessor took 31.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:22:22,159 INFO L168 Benchmark]: RCFGBuilder took 266.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:22:22,159 INFO L168 Benchmark]: TraceAbstraction took 1316.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 818.5 MB in the end (delta: 249.6 MB). Peak memory consumption was 249.6 MB. Max. memory is 11.5 GB. [2018-12-01 18:22:22,159 INFO L168 Benchmark]: Witness Printer took 28.23 ms. Allocated memory is still 1.2 GB. Free memory is still 818.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:22:22,160 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 266.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1316.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 818.5 MB in the end (delta: 249.6 MB). Peak memory consumption was 249.6 MB. Max. memory is 11.5 GB. * Witness Printer took 28.23 ms. Allocated memory is still 1.2 GB. Free memory is still 818.5 MB. There was no memory consumed. 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: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] List a = (List) malloc(sizeof(struct node)); VAL [a={14:0}, malloc(sizeof(struct node))={14:0}] [L628] COND FALSE !(a == 0) VAL [a={14:0}, malloc(sizeof(struct node))={14:0}] [L629] List t; [L630] List p = a; VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L631] a->h = 2 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L632] COND FALSE !(__VERIFIER_nondet_int()) [L639] p->h = 2 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L640] p->n = 0 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L641] p = a VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L642] COND TRUE p!=0 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L643] EXPR p->h VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}, p->h=2] [L643] COND FALSE !(p->h != 2) [L646] EXPR p->n VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}, p->n={0:0}] [L646] p = p->n [L642] COND FALSE !(p!=0) VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={0:0}] [L648] return 0; VAL [\result=0, a={14:0}, malloc(sizeof(struct node))={14:0}, p={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 17 error locations. UNSAFE Result, 1.2s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 209 SDtfs, 419 SDslu, 292 SDs, 0 SdLazy, 519 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 77 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 12172 SizeOfPredicates, 11 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...