./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/sll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 4817866b64d47a0885045d682a213ce065b00b0f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:18:49,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:18:49,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:18:49,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:18:49,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:18:49,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:18:49,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:18:49,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:18:49,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:18:49,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:18:49,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:18:49,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:18:49,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:18:49,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:18:49,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:18:49,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:18:49,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:18:49,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:18:49,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:18:49,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:18:49,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:18:49,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:18:49,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:18:49,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:18:49,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:18:49,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:18:49,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:18:49,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:18:49,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:18:49,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:18:49,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:18:49,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:18:49,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:18:49,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:18:49,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:18:49,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:18:49,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:18:49,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:18:49,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:18:49,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:18:49,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:18:49,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-20 06:18:49,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:18:49,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:18:49,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:18:49,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:18:49,145 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:18:49,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:18:49,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:18:49,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:18:49,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:18:49,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:18:49,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:18:49,146 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:18:49,146 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:18:49,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:18:49,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:18:49,147 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:18:49,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:18:49,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:18:49,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:18:49,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:18:49,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:18:49,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:18:49,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:18:49,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:18:49,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:18:49,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:18:49,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:18:49,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 4817866b64d47a0885045d682a213ce065b00b0f [2020-10-20 06:18:49,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:18:49,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:18:49,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:18:49,384 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:18:49,385 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:18:49,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-optional-2.i [2020-10-20 06:18:49,466 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c6d5cca/e2f8c582d876486eac90a33c09460bc8/FLAG9fd449e0c [2020-10-20 06:18:50,023 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:18:50,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-optional-2.i [2020-10-20 06:18:50,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c6d5cca/e2f8c582d876486eac90a33c09460bc8/FLAG9fd449e0c [2020-10-20 06:18:50,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c6d5cca/e2f8c582d876486eac90a33c09460bc8 [2020-10-20 06:18:50,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:18:50,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:18:50,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:50,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:18:50,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:18:50,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:50,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e45cc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50, skipping insertion in model container [2020-10-20 06:18:50,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:50,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:18:50,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:18:50,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:50,857 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:18:50,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:50,994 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:18:50,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50 WrapperNode [2020-10-20 06:18:50,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:50,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:18:50,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:18:50,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:18:51,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... [2020-10-20 06:18:51,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:18:51,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:18:51,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:18:51,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:18:51,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:18:51,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:18:51,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:18:51,169 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:18:51,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:18:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:18:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:18:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:18:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:18:51,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:18:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:18:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:18:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:18:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:18:51,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:18:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:18:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:18:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:18:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:18:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:18:51,172 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:18:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:18:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:18:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:18:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:18:51,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:18:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:18:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:18:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:18:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:18:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:18:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:18:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:18:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:18:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:18:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:18:51,176 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:18:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:18:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:18:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:18:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:18:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:18:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:18:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:18:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:18:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:18:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:18:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:18:51,183 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:18:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:18:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:18:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:18:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:18:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:18:51,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:18:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:18:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:18:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:18:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:18:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:18:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:18:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:18:51,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:18:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:18:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:18:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:18:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:18:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:18:51,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:18:51,958 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:18:51,959 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:18:51,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:51 BoogieIcfgContainer [2020-10-20 06:18:51,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:18:51,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:18:51,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:18:51,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:18:51,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:18:50" (1/3) ... [2020-10-20 06:18:51,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3a619f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:18:51, skipping insertion in model container [2020-10-20 06:18:51,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:50" (2/3) ... [2020-10-20 06:18:51,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3a619f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:18:51, skipping insertion in model container [2020-10-20 06:18:51,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:51" (3/3) ... [2020-10-20 06:18:51,982 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-optional-2.i [2020-10-20 06:18:51,997 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:18:52,009 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 60 error locations. [2020-10-20 06:18:52,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2020-10-20 06:18:52,050 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:18:52,051 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:18:52,051 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:18:52,052 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:18:52,052 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:18:52,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:18:52,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:18:52,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:18:52,096 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-10-20 06:18:52,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:18:52,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:52,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:52,111 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:52,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:52,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2076013176, now seen corresponding path program 1 times [2020-10-20 06:18:52,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:52,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051595710] [2020-10-20 06:18:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:52,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:52,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051595710] [2020-10-20 06:18:52,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:52,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:52,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933468884] [2020-10-20 06:18:52,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:52,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:52,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:52,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:52,408 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 4 states. [2020-10-20 06:18:52,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:52,792 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2020-10-20 06:18:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:52,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:18:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:52,807 INFO L225 Difference]: With dead ends: 133 [2020-10-20 06:18:52,808 INFO L226 Difference]: Without dead ends: 129 [2020-10-20 06:18:52,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:52,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-20 06:18:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2020-10-20 06:18:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-20 06:18:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2020-10-20 06:18:52,879 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 7 [2020-10-20 06:18:52,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:52,880 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2020-10-20 06:18:52,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2020-10-20 06:18:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:18:52,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:52,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:52,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:18:52,882 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:52,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2076013177, now seen corresponding path program 1 times [2020-10-20 06:18:52,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:52,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609675235] [2020-10-20 06:18:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:52,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609675235] [2020-10-20 06:18:52,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:52,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:52,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827282956] [2020-10-20 06:18:52,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:52,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:52,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:52,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:52,991 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 4 states. [2020-10-20 06:18:53,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:53,271 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2020-10-20 06:18:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:53,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:18:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:53,274 INFO L225 Difference]: With dead ends: 119 [2020-10-20 06:18:53,274 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 06:18:53,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:53,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 06:18:53,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2020-10-20 06:18:53,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-20 06:18:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2020-10-20 06:18:53,285 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 7 [2020-10-20 06:18:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:53,285 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2020-10-20 06:18:53,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2020-10-20 06:18:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:18:53,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:53,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:53,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:18:53,288 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:53,288 INFO L82 PathProgramCache]: Analyzing trace with hash 244643326, now seen corresponding path program 1 times [2020-10-20 06:18:53,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:53,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041678348] [2020-10-20 06:18:53,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:53,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:53,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041678348] [2020-10-20 06:18:53,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:53,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:53,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848086899] [2020-10-20 06:18:53,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:53,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:53,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:53,403 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand 6 states. [2020-10-20 06:18:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:54,020 INFO L93 Difference]: Finished difference Result 228 states and 249 transitions. [2020-10-20 06:18:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:18:54,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 06:18:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:54,024 INFO L225 Difference]: With dead ends: 228 [2020-10-20 06:18:54,024 INFO L226 Difference]: Without dead ends: 228 [2020-10-20 06:18:54,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:54,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-20 06:18:54,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 114. [2020-10-20 06:18:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 06:18:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-10-20 06:18:54,037 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 14 [2020-10-20 06:18:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:54,037 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-10-20 06:18:54,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-10-20 06:18:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:18:54,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:54,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:54,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:18:54,039 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:54,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:54,040 INFO L82 PathProgramCache]: Analyzing trace with hash 244643327, now seen corresponding path program 1 times [2020-10-20 06:18:54,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:54,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937199205] [2020-10-20 06:18:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:54,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:54,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937199205] [2020-10-20 06:18:54,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:54,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:54,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891836914] [2020-10-20 06:18:54,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:54,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:54,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:54,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:54,260 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 6 states. [2020-10-20 06:18:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:54,834 INFO L93 Difference]: Finished difference Result 203 states and 222 transitions. [2020-10-20 06:18:54,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:54,835 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 06:18:54,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:54,837 INFO L225 Difference]: With dead ends: 203 [2020-10-20 06:18:54,837 INFO L226 Difference]: Without dead ends: 203 [2020-10-20 06:18:54,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-20 06:18:54,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 113. [2020-10-20 06:18:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-20 06:18:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2020-10-20 06:18:54,848 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 14 [2020-10-20 06:18:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:54,848 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2020-10-20 06:18:54,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2020-10-20 06:18:54,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 06:18:54,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:54,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:54,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:18:54,850 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:54,851 INFO L82 PathProgramCache]: Analyzing trace with hash 264916741, now seen corresponding path program 1 times [2020-10-20 06:18:54,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:54,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427577821] [2020-10-20 06:18:54,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:54,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427577821] [2020-10-20 06:18:54,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:54,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:54,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552445820] [2020-10-20 06:18:54,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:54,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:54,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:54,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:54,932 INFO L87 Difference]: Start difference. First operand 113 states and 123 transitions. Second operand 5 states. [2020-10-20 06:18:55,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:55,184 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2020-10-20 06:18:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:55,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-20 06:18:55,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:55,186 INFO L225 Difference]: With dead ends: 117 [2020-10-20 06:18:55,187 INFO L226 Difference]: Without dead ends: 117 [2020-10-20 06:18:55,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-20 06:18:55,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2020-10-20 06:18:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-20 06:18:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2020-10-20 06:18:55,194 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 16 [2020-10-20 06:18:55,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:55,194 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2020-10-20 06:18:55,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2020-10-20 06:18:55,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 06:18:55,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:55,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:55,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:18:55,197 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:55,197 INFO L82 PathProgramCache]: Analyzing trace with hash 264916742, now seen corresponding path program 1 times [2020-10-20 06:18:55,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:55,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944225026] [2020-10-20 06:18:55,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:55,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:55,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:55,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944225026] [2020-10-20 06:18:55,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:55,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:18:55,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617482308] [2020-10-20 06:18:55,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:18:55,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:55,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:18:55,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:18:55,294 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2020-10-20 06:18:55,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:55,704 INFO L93 Difference]: Finished difference Result 127 states and 142 transitions. [2020-10-20 06:18:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:55,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-20 06:18:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:55,706 INFO L225 Difference]: With dead ends: 127 [2020-10-20 06:18:55,707 INFO L226 Difference]: Without dead ends: 127 [2020-10-20 06:18:55,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:18:55,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-20 06:18:55,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119. [2020-10-20 06:18:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-20 06:18:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 135 transitions. [2020-10-20 06:18:55,726 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 135 transitions. Word has length 16 [2020-10-20 06:18:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:55,727 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 135 transitions. [2020-10-20 06:18:55,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:18:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 135 transitions. [2020-10-20 06:18:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:18:55,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:55,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:55,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:18:55,736 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:55,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2015222079, now seen corresponding path program 1 times [2020-10-20 06:18:55,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:55,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216882898] [2020-10-20 06:18:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:55,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:55,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216882898] [2020-10-20 06:18:55,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:55,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:18:55,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831438879] [2020-10-20 06:18:55,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:18:55,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:55,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:18:55,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:18:55,826 INFO L87 Difference]: Start difference. First operand 119 states and 135 transitions. Second operand 7 states. [2020-10-20 06:18:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:56,286 INFO L93 Difference]: Finished difference Result 166 states and 189 transitions. [2020-10-20 06:18:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:18:56,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-20 06:18:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:56,288 INFO L225 Difference]: With dead ends: 166 [2020-10-20 06:18:56,288 INFO L226 Difference]: Without dead ends: 166 [2020-10-20 06:18:56,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:18:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-20 06:18:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 118. [2020-10-20 06:18:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-20 06:18:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 134 transitions. [2020-10-20 06:18:56,297 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 134 transitions. Word has length 19 [2020-10-20 06:18:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:56,297 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 134 transitions. [2020-10-20 06:18:56,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:18:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 134 transitions. [2020-10-20 06:18:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:18:56,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:56,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:56,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:18:56,299 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:56,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2015222078, now seen corresponding path program 1 times [2020-10-20 06:18:56,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:56,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124645746] [2020-10-20 06:18:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:56,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124645746] [2020-10-20 06:18:56,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:56,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:18:56,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412410788] [2020-10-20 06:18:56,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:18:56,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:56,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:18:56,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:18:56,389 INFO L87 Difference]: Start difference. First operand 118 states and 134 transitions. Second operand 7 states. [2020-10-20 06:18:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:56,864 INFO L93 Difference]: Finished difference Result 168 states and 195 transitions. [2020-10-20 06:18:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:18:56,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-20 06:18:56,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:56,866 INFO L225 Difference]: With dead ends: 168 [2020-10-20 06:18:56,867 INFO L226 Difference]: Without dead ends: 168 [2020-10-20 06:18:56,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:18:56,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-20 06:18:56,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 104. [2020-10-20 06:18:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 06:18:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2020-10-20 06:18:56,872 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 19 [2020-10-20 06:18:56,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:56,873 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2020-10-20 06:18:56,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:18:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2020-10-20 06:18:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 06:18:56,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:56,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:56,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:18:56,874 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:56,875 INFO L82 PathProgramCache]: Analyzing trace with hash 140607626, now seen corresponding path program 1 times [2020-10-20 06:18:56,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:56,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581654769] [2020-10-20 06:18:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:56,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:56,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581654769] [2020-10-20 06:18:56,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:56,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:56,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322537750] [2020-10-20 06:18:56,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:56,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:56,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:56,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:56,941 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 5 states. [2020-10-20 06:18:57,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:57,170 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2020-10-20 06:18:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:18:57,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-20 06:18:57,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:57,171 INFO L225 Difference]: With dead ends: 134 [2020-10-20 06:18:57,171 INFO L226 Difference]: Without dead ends: 134 [2020-10-20 06:18:57,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:57,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-20 06:18:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 104. [2020-10-20 06:18:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 06:18:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2020-10-20 06:18:57,176 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 21 [2020-10-20 06:18:57,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:57,176 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2020-10-20 06:18:57,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:57,176 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2020-10-20 06:18:57,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 06:18:57,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:57,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:57,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:18:57,178 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr58ENSURES_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:57,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:57,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1642062954, now seen corresponding path program 1 times [2020-10-20 06:18:57,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:57,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967725462] [2020-10-20 06:18:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:18:57,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:18:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:18:57,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:18:57,232 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:18:57,233 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:18:57,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:18:57,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:18:57 BoogieIcfgContainer [2020-10-20 06:18:57,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:18:57,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:18:57,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:18:57,266 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:18:57,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:51" (3/4) ... [2020-10-20 06:18:57,269 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:18:57,322 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:18:57,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:18:57,324 INFO L168 Benchmark]: Toolchain (without parser) took 7003.35 ms. Allocated memory was 37.2 MB in the beginning and 91.8 MB in the end (delta: 54.5 MB). Free memory was 20.4 MB in the beginning and 21.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 53.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,325 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 34.6 MB. Free memory was 12.8 MB in the beginning and 12.8 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.04 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 19.5 MB in the beginning and 15.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,327 INFO L168 Benchmark]: Boogie Preprocessor took 100.68 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 15.2 MB in the beginning and 27.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,328 INFO L168 Benchmark]: RCFGBuilder took 866.29 ms. Allocated memory was 47.2 MB in the beginning and 50.3 MB in the end (delta: 3.1 MB). Free memory was 27.5 MB in the beginning and 25.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,328 INFO L168 Benchmark]: TraceAbstraction took 5299.12 ms. Allocated memory was 50.3 MB in the beginning and 91.8 MB in the end (delta: 41.4 MB). Free memory was 25.5 MB in the beginning and 24.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 42.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,329 INFO L168 Benchmark]: Witness Printer took 56.27 ms. Allocated memory is still 91.8 MB. Free memory was 24.1 MB in the beginning and 21.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:57,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 34.6 MB. Free memory was 12.8 MB in the beginning and 12.8 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 668.04 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 19.5 MB in the beginning and 15.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 100.68 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 15.2 MB in the beginning and 27.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 866.29 ms. Allocated memory was 47.2 MB in the beginning and 50.3 MB in the end (delta: 3.1 MB). Free memory was 27.5 MB in the beginning and 25.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5299.12 ms. Allocated memory was 50.3 MB in the beginning and 91.8 MB in the end (delta: 41.4 MB). Free memory was 25.5 MB in the beginning and 24.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 42.9 MB. Max. memory is 14.3 GB. * Witness Printer took 56.27 ms. Allocated memory is still 91.8 MB. Free memory was 24.1 MB in the beginning and 21.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L997] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] COND TRUE __VERIFIER_nondet_int() [L998] head->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1004] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1005] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1007] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1007] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1, x->data == 2 && x->opt == x=0] [L1007] COND TRUE !(x->data == 2 && x->opt == x) [L1007] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-optional-2.c", 16, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 135 locations, 60 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 852 SDtfs, 1063 SDslu, 1263 SDs, 0 SdLazy, 2924 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 9738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...