./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35a5ccff58935eefedf723cd2243fac7c8b8e61b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:15:49,284 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:15:49,285 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:15:49,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:15:49,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:15:49,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:15:49,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:15:49,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:15:49,297 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:15:49,297 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:15:49,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:15:49,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:15:49,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:15:49,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:15:49,300 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:15:49,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:15:49,301 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:15:49,303 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:15:49,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:15:49,305 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:15:49,306 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:15:49,306 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:15:49,308 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:15:49,308 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:15:49,309 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:15:49,309 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:15:49,310 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:15:49,310 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:15:49,311 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:15:49,312 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:15:49,312 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:15:49,313 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:15:49,313 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:15:49,313 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:15:49,313 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:15:49,314 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:15:49,314 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 13:15:49,324 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:15:49,325 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:15:49,325 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:15:49,325 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:15:49,326 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:15:49,326 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:15:49,326 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:15:49,326 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:15:49,326 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:15:49,327 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:15:49,328 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:15:49,328 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:15:49,328 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:15:49,328 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:15:49,328 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:15:49,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:15:49,328 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:15:49,328 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:15:49,329 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:15:49,329 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:15:49,329 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:15:49,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:15:49,329 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_07f4b210-2dfc-4a96-9760-62c29b5e01a8/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 ! call(__VERIFIER_error())) ) 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 -> 35a5ccff58935eefedf723cd2243fac7c8b8e61b [2018-11-10 13:15:49,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:15:49,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:15:49,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:15:49,365 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:15:49,365 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:15:49,366 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 13:15:49,414 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/data/60851a77f/13227b36afd64416bf23b094991d38f4/FLAG3f79517a3 [2018-11-10 13:15:49,789 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:15:49,790 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/sv-benchmarks/c/forester-heap/dll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 13:15:49,797 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/data/60851a77f/13227b36afd64416bf23b094991d38f4/FLAG3f79517a3 [2018-11-10 13:15:49,808 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/data/60851a77f/13227b36afd64416bf23b094991d38f4 [2018-11-10 13:15:49,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:15:49,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:15:49,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:15:49,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:15:49,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:15:49,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:15:49" (1/1) ... [2018-11-10 13:15:49,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cdfcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:49, skipping insertion in model container [2018-11-10 13:15:49,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:15:49" (1/1) ... [2018-11-10 13:15:49,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:15:49,862 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:15:50,045 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:15:50,051 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:15:50,079 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:15:50,110 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:15:50,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50 WrapperNode [2018-11-10 13:15:50,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:15:50,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:15:50,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:15:50,112 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:15:50,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... [2018-11-10 13:15:50,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:15:50,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:15:50,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:15:50,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:15:50,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/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 [2018-11-10 13:15:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:15:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:15:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:15:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 13:15:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 13:15:50,236 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 13:15:50,237 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 13:15:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 13:15:50,239 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 13:15:50,240 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 13:15:50,241 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 13:15:50,242 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 13:15:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 13:15:50,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 13:15:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 13:15:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 13:15:50,247 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 13:15:50,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 13:15:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:15:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:15:50,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 13:15:50,559 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:15:50,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:15:50 BoogieIcfgContainer [2018-11-10 13:15:50,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:15:50,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:15:50,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:15:50,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:15:50,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:15:49" (1/3) ... [2018-11-10 13:15:50,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424f4027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:15:50, skipping insertion in model container [2018-11-10 13:15:50,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:15:50" (2/3) ... [2018-11-10 13:15:50,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424f4027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:15:50, skipping insertion in model container [2018-11-10 13:15:50,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:15:50" (3/3) ... [2018-11-10 13:15:50,565 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-10 13:15:50,571 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:15:50,578 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 13:15:50,588 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 13:15:50,609 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:15:50,610 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:15:50,610 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:15:50,610 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:15:50,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:15:50,610 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:15:50,611 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:15:50,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:15:50,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:15:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2018-11-10 13:15:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 13:15:50,629 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:15:50,630 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:15:50,631 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:15:50,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:15:50,635 INFO L82 PathProgramCache]: Analyzing trace with hash 5554824, now seen corresponding path program 1 times [2018-11-10 13:15:50,637 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:15:50,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:15:50,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:50,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:15:50,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:15:50,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:15:50,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:15:50,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:15:50,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:15:50,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:15:50,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:15:50,759 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2018-11-10 13:15:50,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:15:50,777 INFO L93 Difference]: Finished difference Result 165 states and 211 transitions. [2018-11-10 13:15:50,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:15:50,778 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 13:15:50,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:15:50,786 INFO L225 Difference]: With dead ends: 165 [2018-11-10 13:15:50,787 INFO L226 Difference]: Without dead ends: 78 [2018-11-10 13:15:50,789 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:15:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-10 13:15:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-11-10 13:15:50,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-10 13:15:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2018-11-10 13:15:50,816 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 24 [2018-11-10 13:15:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:15:50,816 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2018-11-10 13:15:50,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:15:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2018-11-10 13:15:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 13:15:50,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:15:50,817 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:15:50,817 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:15:50,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:15:50,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1296829252, now seen corresponding path program 1 times [2018-11-10 13:15:50,818 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:15:50,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:15:50,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:50,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:15:50,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:15:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:15:50,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:15:51,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 13:15:51,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 13:15:51,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 13:15:51,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-11-10 13:15:51,002 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand 11 states. [2018-11-10 13:15:51,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:15:51,422 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2018-11-10 13:15:51,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 13:15:51,423 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-10 13:15:51,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:15:51,424 INFO L225 Difference]: With dead ends: 152 [2018-11-10 13:15:51,424 INFO L226 Difference]: Without dead ends: 150 [2018-11-10 13:15:51,425 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-11-10 13:15:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-10 13:15:51,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 91. [2018-11-10 13:15:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-10 13:15:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2018-11-10 13:15:51,434 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 25 [2018-11-10 13:15:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:15:51,435 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2018-11-10 13:15:51,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 13:15:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2018-11-10 13:15:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 13:15:51,436 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:15:51,436 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:15:51,436 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:15:51,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:15:51,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2029338758, now seen corresponding path program 1 times [2018-11-10 13:15:51,436 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:15:51,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:15:51,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:51,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:15:51,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:15:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:15:51,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:15:51,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:15:51,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:15:51,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:15:51,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:15:51,508 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand 5 states. [2018-11-10 13:15:51,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:15:51,590 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2018-11-10 13:15:51,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:15:51,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-10 13:15:51,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:15:51,591 INFO L225 Difference]: With dead ends: 138 [2018-11-10 13:15:51,592 INFO L226 Difference]: Without dead ends: 136 [2018-11-10 13:15:51,592 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:15:51,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-11-10 13:15:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 89. [2018-11-10 13:15:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-11-10 13:15:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2018-11-10 13:15:51,598 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 26 [2018-11-10 13:15:51,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:15:51,598 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2018-11-10 13:15:51,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:15:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2018-11-10 13:15:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 13:15:51,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:15:51,598 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:15:51,599 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:15:51,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:15:51,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1675096883, now seen corresponding path program 1 times [2018-11-10 13:15:51,599 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:15:51,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:15:51,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:51,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:15:51,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:15:51,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:15:51,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:15:51,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:15:51,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:15:51,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:15:51,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:15:51,637 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand 5 states. [2018-11-10 13:15:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:15:51,689 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2018-11-10 13:15:51,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:15:51,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-11-10 13:15:51,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:15:51,690 INFO L225 Difference]: With dead ends: 89 [2018-11-10 13:15:51,691 INFO L226 Difference]: Without dead ends: 87 [2018-11-10 13:15:51,691 INFO L605 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 [2018-11-10 13:15:51,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-11-10 13:15:51,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-11-10 13:15:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-11-10 13:15:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2018-11-10 13:15:51,698 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 33 [2018-11-10 13:15:51,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:15:51,699 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2018-11-10 13:15:51,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:15:51,699 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2018-11-10 13:15:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 13:15:51,699 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:15:51,700 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:15:51,700 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:15:51,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:15:51,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1674019441, now seen corresponding path program 1 times [2018-11-10 13:15:51,700 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:15:51,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:15:51,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:51,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:15:51,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:15:51,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:15:51,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:15:51,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-10 13:15:51,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-10 13:15:51,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-10 13:15:51,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:15:51,969 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 13 states. [2018-11-10 13:15:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:15:52,306 INFO L93 Difference]: Finished difference Result 197 states and 203 transitions. [2018-11-10 13:15:52,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 13:15:52,306 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-11-10 13:15:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:15:52,307 INFO L225 Difference]: With dead ends: 197 [2018-11-10 13:15:52,308 INFO L226 Difference]: Without dead ends: 162 [2018-11-10 13:15:52,308 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2018-11-10 13:15:52,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-11-10 13:15:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 102. [2018-11-10 13:15:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-10 13:15:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2018-11-10 13:15:52,315 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 33 [2018-11-10 13:15:52,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:15:52,316 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2018-11-10 13:15:52,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-10 13:15:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2018-11-10 13:15:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 13:15:52,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:15:52,317 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:15:52,317 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:15:52,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:15:52,318 INFO L82 PathProgramCache]: Analyzing trace with hash 87642355, now seen corresponding path program 1 times [2018-11-10 13:15:52,318 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:15:52,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:15:52,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:52,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:15:52,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:15:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:15:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:15:52,361 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:15:52,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:15:52 BoogieIcfgContainer [2018-11-10 13:15:52,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:15:52,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:15:52,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:15:52,386 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:15:52,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:15:50" (3/4) ... [2018-11-10 13:15:52,389 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:15:52,421 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07f4b210-2dfc-4a96-9760-62c29b5e01a8/bin-2019/uautomizer/witness.graphml [2018-11-10 13:15:52,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:15:52,422 INFO L168 Benchmark]: Toolchain (without parser) took 2610.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -90.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:15:52,423 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:15:52,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.19 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 932.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:15:52,423 INFO L168 Benchmark]: Boogie Preprocessor took 87.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 932.4 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:15:52,424 INFO L168 Benchmark]: RCFGBuilder took 360.31 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:15:52,424 INFO L168 Benchmark]: TraceAbstraction took 1825.64 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: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:15:52,425 INFO L168 Benchmark]: Witness Printer took 35.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:15:52,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.19 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 932.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 932.4 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 360.31 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1825.64 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: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L993] EXPR, FCALL malloc(sizeof(SLL)) VAL [malloc(sizeof(SLL))={15:0}] [L993] SLL* head = malloc(sizeof(SLL)); VAL [head={15:0}, malloc(sizeof(SLL))={15:0}] [L994] FCALL head->next = ((void*)0) VAL [head={15:0}, malloc(sizeof(SLL))={15:0}] [L995] FCALL head->prev = ((void*)0) VAL [head={15:0}, malloc(sizeof(SLL))={15:0}] [L996] FCALL head->data = 0 VAL [head={15:0}, malloc(sizeof(SLL))={15:0}] [L998] SLL* x = head; VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] FCALL x->data = 1 VAL [head={15:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1011] EXPR, FCALL malloc(sizeof(SLL)) VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1011] FCALL x->next = malloc(sizeof(SLL)) VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1012] EXPR, FCALL x->next VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->next={13:0}] [L1012] FCALL x->next->prev = x VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->next={13:0}] [L1013] EXPR, FCALL x->next VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->next={13:0}] [L1013] FCALL x->next->data = 2 VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->next={13:0}] [L1015] x = head VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1017] COND FALSE !(!(((void*)0) != x)) VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1017] COND FALSE !(0) VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1019] EXPR, FCALL x->data VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->data=1] [L1019] COND FALSE !(1 != x->data) [L1024] EXPR, FCALL x->data VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->data=1] [L1024] COND FALSE !(!(1 == x->data)) [L1024] COND FALSE !(0) VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}] [L1025] EXPR, FCALL x->next VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={15:0}, x->next={13:0}] [L1025] x = x->next [L1026] EXPR, FCALL x->data VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={13:0}, x->data=2] [L1026] COND TRUE !(2 != x->data) [L1026] __VERIFIER_error() VAL [head={15:0}, malloc(sizeof(SLL))={13:0}, malloc(sizeof(SLL))={15:0}, x={13:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 6 error locations. UNSAFE Result, 1.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 306 SDtfs, 1001 SDslu, 799 SDs, 0 SdLazy, 733 SolverSat, 110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=5, 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, 5 MinimizatonAttempts, 166 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 18563 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...