./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/memsafety/test-0158-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3baf3e1382b3477cfa26255004191fb506be280 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/memsafety/test-0158-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3baf3e1382b3477cfa26255004191fb506be280 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:01:10,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:01:10,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:01:11,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:01:11,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:01:11,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:01:11,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:01:11,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:01:11,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:01:11,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:01:11,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:01:11,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:01:11,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:01:11,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:01:11,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:01:11,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:01:11,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:01:11,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:01:11,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:01:11,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:01:11,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:01:11,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:01:11,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:01:11,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:01:11,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:01:11,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:01:11,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:01:11,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:01:11,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:01:11,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:01:11,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:01:11,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:01:11,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:01:11,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:01:11,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:01:11,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:01:11,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:01:11,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:01:11,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:01:11,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:01:11,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:01:11,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:01:11,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:01:11,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:01:11,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:01:11,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:01:11,091 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:01:11,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:01:11,091 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:01:11,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:01:11,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:01:11,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:01:11,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:01:11,093 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:01:11,093 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:01:11,093 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:01:11,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:01:11,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:01:11,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:01:11,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:01:11,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:01:11,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:01:11,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:01:11,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:01:11,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:01:11,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:01:11,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:01:11,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:01:11,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:01:11,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:01:11,098 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-10-19 18:01:11,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:01:11,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:01:11,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:01:11,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:01:11,486 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:01:11,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-19 18:01:11,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e765da202/198555e61b9b465b864545c5b61b0485/FLAG5289cb6e5 [2020-10-19 18:01:12,102 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:01:12,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-19 18:01:12,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e765da202/198555e61b9b465b864545c5b61b0485/FLAG5289cb6e5 [2020-10-19 18:01:12,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e765da202/198555e61b9b465b864545c5b61b0485 [2020-10-19 18:01:12,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:01:12,387 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:01:12,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:01:12,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:01:12,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:01:12,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:01:12" (1/1) ... [2020-10-19 18:01:12,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea562fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:12, skipping insertion in model container [2020-10-19 18:01:12,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:01:12" (1/1) ... [2020-10-19 18:01:12,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:01:12,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:01:12,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:01:12,896 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:01:12,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:01:13,048 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:01:13,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13 WrapperNode [2020-10-19 18:01:13,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:01:13,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:01:13,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:01:13,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:01:13,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (1/1) ... [2020-10-19 18:01:13,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:01:13,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:01:13,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:01:13,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:01:13,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (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 [2020-10-19 18:01:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:01:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:01:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:01:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:01:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:01:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:01:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:01:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:01:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:01:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:01:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:01:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:01:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:01:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:01:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:01:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:01:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:01:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:01:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:01:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:01:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:01:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:01:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:01:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:01:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:01:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:01:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:01:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:01:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:01:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:01:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:01:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:01:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:01:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:01:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:01:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:01:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:01:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:01:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:01:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:01:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:01:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:01:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:01:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:01:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:01:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:01:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:01:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:01:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:01:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:01:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:01:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:01:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:01:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:01:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:01:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:01:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:01:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:01:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:01:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:01:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:01:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:01:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:01:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:01:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:01:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:01:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:01:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:01:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:01:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:01:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:01:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:01:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:01:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:01:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:01:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:01:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:01:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:01:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:01:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:01:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:01:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:01:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:01:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:01:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:01:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:01:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:01:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:01:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:01:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:01:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:01:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:01:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:01:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:01:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:01:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:01:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:01:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:01:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:01:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:01:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:01:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:01:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:01:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:01:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:01:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:01:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:01:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:01:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:01:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:01:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:01:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:01:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:01:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:01:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:01:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:01:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:01:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:01:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:01:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:01:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:01:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:01:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:01:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:01:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:01:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:01:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:01:13,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:01:13,717 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:01:13,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:13 BoogieIcfgContainer [2020-10-19 18:01:13,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:01:13,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:01:13,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:01:13,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:01:13,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:01:12" (1/3) ... [2020-10-19 18:01:13,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c746e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:01:13, skipping insertion in model container [2020-10-19 18:01:13,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:13" (2/3) ... [2020-10-19 18:01:13,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c746e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:01:13, skipping insertion in model container [2020-10-19 18:01:13,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:13" (3/3) ... [2020-10-19 18:01:13,731 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-10-19 18:01:13,744 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:01:13,753 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-19 18:01:13,769 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-19 18:01:13,797 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:01:13,798 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:01:13,798 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:01:13,798 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:01:13,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:01:13,799 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:01:13,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:01:13,800 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:01:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-19 18:01:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:01:13,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:13,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:13,831 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:01:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:13,838 INFO L82 PathProgramCache]: Analyzing trace with hash 666091848, now seen corresponding path program 1 times [2020-10-19 18:01:13,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:13,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692063417] [2020-10-19 18:01:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:14,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:01:14,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692063417] [2020-10-19 18:01:14,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:14,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:01:14,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144827784] [2020-10-19 18:01:14,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:01:14,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:14,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:01:14,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:01:14,139 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2020-10-19 18:01:14,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:14,221 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-19 18:01:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:01:14,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:01:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:14,233 INFO L225 Difference]: With dead ends: 18 [2020-10-19 18:01:14,234 INFO L226 Difference]: Without dead ends: 15 [2020-10-19 18:01:14,235 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 [2020-10-19 18:01:14,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-19 18:01:14,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-19 18:01:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:01:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-19 18:01:14,266 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2020-10-19 18:01:14,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:14,266 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-19 18:01:14,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:01:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-19 18:01:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:01:14,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:14,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:14,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:01:14,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:01:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 666091849, now seen corresponding path program 1 times [2020-10-19 18:01:14,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:14,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323114259] [2020-10-19 18:01:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:01:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:01:14,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323114259] [2020-10-19 18:01:14,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:14,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:01:14,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737120207] [2020-10-19 18:01:14,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:01:14,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:01:14,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:01:14,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:01:14,389 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 4 states. [2020-10-19 18:01:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:14,431 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-19 18:01:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:01:14,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:01:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:14,432 INFO L225 Difference]: With dead ends: 12 [2020-10-19 18:01:14,433 INFO L226 Difference]: Without dead ends: 12 [2020-10-19 18:01:14,434 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 [2020-10-19 18:01:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-19 18:01:14,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 18:01:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:01:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-19 18:01:14,437 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2020-10-19 18:01:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:14,437 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-19 18:01:14,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:01:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-19 18:01:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:01:14,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:14,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:14,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:01:14,439 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:01:14,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:14,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1176654068, now seen corresponding path program 1 times [2020-10-19 18:01:14,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:01:14,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603852892] [2020-10-19 18:01:14,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:01:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:01:14,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:01:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:01:14,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:01:14,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:01:14,564 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:01:14,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:01:14,578 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:01:14,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:01:14 BoogieIcfgContainer [2020-10-19 18:01:14,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:01:14,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:01:14,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:01:14,592 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:01:14,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:13" (3/4) ... [2020-10-19 18:01:14,597 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:01:14,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:01:14,600 INFO L168 Benchmark]: Toolchain (without parser) took 2219.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 954.6 MB in the beginning and 960.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 81.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:14,601 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:14,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:14,604 INFO L168 Benchmark]: Boogie Preprocessor took 55.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:14,605 INFO L168 Benchmark]: RCFGBuilder took 613.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:14,605 INFO L168 Benchmark]: TraceAbstraction took 868.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 960.8 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:14,606 INFO L168 Benchmark]: Witness Printer took 7.12 ms. Allocated memory is still 1.1 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:14,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 662.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 613.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 868.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 960.8 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. * Witness Printer took 7.12 ms. Allocated memory is still 1.1 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L534] data.str.p2 = &data VAL [data={3:0}, malloc(37U)={-1:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}, malloc(37U)={-1:0}] [L536] return 0; [L536] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 41 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 9 SDslu, 17 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:01:16,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:01:16,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:01:16,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:01:16,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:01:16,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:01:16,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:01:16,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:01:16,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:01:16,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:01:16,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:01:16,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:01:16,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:01:16,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:01:16,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:01:16,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:01:16,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:01:16,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:01:16,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:01:16,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:01:16,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:01:16,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:01:16,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:01:16,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:01:16,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:01:16,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:01:16,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:01:16,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:01:16,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:01:16,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:01:16,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:01:16,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:01:16,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:01:16,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:01:16,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:01:16,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:01:16,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:01:16,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:01:16,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:01:16,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:01:16,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:01:16,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:01:16,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:01:16,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:01:16,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:01:16,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:01:16,840 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:01:16,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:01:16,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:01:16,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:01:16,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:01:16,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:01:16,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:01:16,842 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:01:16,842 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:01:16,842 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:01:16,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:01:16,843 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:01:16,843 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:01:16,843 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:01:16,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:01:16,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:01:16,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:01:16,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:01:16,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:01:16,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:01:16,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:01:16,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:01:16,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:01:16,846 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:01:16,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:01:16,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:01:16,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:01:16,847 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2020-10-19 18:01:17,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:01:17,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:01:17,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:01:17,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:01:17,212 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:01:17,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-19 18:01:17,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3571cdc79/a34111d4975043ebb5958aba118f4c00/FLAG824b02a20 [2020-10-19 18:01:17,957 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:01:17,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2020-10-19 18:01:17,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3571cdc79/a34111d4975043ebb5958aba118f4c00/FLAG824b02a20 [2020-10-19 18:01:18,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3571cdc79/a34111d4975043ebb5958aba118f4c00 [2020-10-19 18:01:18,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:01:18,181 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:01:18,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:01:18,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:01:18,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:01:18,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9014cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18, skipping insertion in model container [2020-10-19 18:01:18,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:01:18,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:01:18,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:01:18,675 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:01:18,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:01:18,795 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:01:18,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18 WrapperNode [2020-10-19 18:01:18,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:01:18,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:01:18,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:01:18,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:01:18,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (1/1) ... [2020-10-19 18:01:18,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:01:18,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:01:18,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:01:18,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:01:18,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (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 [2020-10-19 18:01:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:01:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:01:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:01:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:01:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:01:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:01:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:01:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:01:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:01:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:01:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:01:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:01:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:01:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:01:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:01:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:01:18,927 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:01:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:01:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:01:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:01:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:01:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:01:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:01:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:01:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:01:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:01:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:01:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:01:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:01:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:01:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:01:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:01:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:01:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:01:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:01:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:01:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:01:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:01:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:01:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:01:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:01:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:01:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:01:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:01:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:01:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:01:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:01:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:01:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:01:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:01:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:01:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:01:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:01:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:01:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:01:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:01:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:01:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:01:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:01:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:01:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:01:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:01:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:01:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:01:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:01:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:01:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:01:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:01:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:01:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:01:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:01:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:01:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:01:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:01:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:01:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:01:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:01:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:01:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:01:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:01:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:01:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:01:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:01:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:01:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:01:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:01:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:01:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:01:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:01:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:01:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:01:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:01:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:01:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:01:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:01:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:01:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:01:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:01:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:01:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:01:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:01:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:01:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:01:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:01:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:01:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:01:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:01:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:01:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:01:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:01:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:01:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:01:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:01:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:01:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:01:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:01:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:01:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:01:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:01:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:01:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:01:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:01:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:01:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:01:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:01:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:01:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:01:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:01:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:01:19,540 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:01:19,540 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-19 18:01:19,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:19 BoogieIcfgContainer [2020-10-19 18:01:19,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:01:19,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:01:19,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:01:19,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:01:19,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:01:18" (1/3) ... [2020-10-19 18:01:19,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f33d88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:01:19, skipping insertion in model container [2020-10-19 18:01:19,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:01:18" (2/3) ... [2020-10-19 18:01:19,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f33d88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:01:19, skipping insertion in model container [2020-10-19 18:01:19,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:19" (3/3) ... [2020-10-19 18:01:19,553 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-10-19 18:01:19,565 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:01:19,573 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-10-19 18:01:19,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-19 18:01:19,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:01:19,610 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:01:19,610 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:01:19,610 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:01:19,611 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:01:19,611 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:01:19,611 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:01:19,612 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:01:19,627 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-19 18:01:19,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:01:19,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:19,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:19,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:01:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:19,646 INFO L82 PathProgramCache]: Analyzing trace with hash -632827618, now seen corresponding path program 1 times [2020-10-19 18:01:19,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:01:19,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701673460] [2020-10-19 18:01:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:01:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:19,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:01:19,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:01:20,011 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-10-19 18:01:20,011 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-10-19 18:01:20,012 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:01:20,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:01:20,032 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:01:20,033 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-10-19 18:01:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:01:20,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:01:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:01:20,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701673460] [2020-10-19 18:01:20,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:20,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:01:20,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883699897] [2020-10-19 18:01:20,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:01:20,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:01:20,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:01:20,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:01:20,119 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-10-19 18:01:20,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:20,213 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-19 18:01:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:01:20,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-19 18:01:20,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:20,234 INFO L225 Difference]: With dead ends: 18 [2020-10-19 18:01:20,240 INFO L226 Difference]: Without dead ends: 15 [2020-10-19 18:01:20,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:01:20,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-19 18:01:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-19 18:01:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:01:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-10-19 18:01:20,289 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2020-10-19 18:01:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:20,290 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-10-19 18:01:20,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:01:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-10-19 18:01:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:01:20,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:20,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:20,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:01:20,507 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:01:20,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash -632827617, now seen corresponding path program 1 times [2020-10-19 18:01:20,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:01:20,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159439963] [2020-10-19 18:01:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:01:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:01:20,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:01:20,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:01:20,674 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_21|], 1=[|v_#valid_27|]} [2020-10-19 18:01:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:01:20,683 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-10-19 18:01:20,684 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:01:20,705 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:01:20,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:01:20,717 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-10-19 18:01:20,718 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:01:20,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:01:20,731 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:01:20,732 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-10-19 18:01:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:01:20,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:01:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:01:20,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159439963] [2020-10-19 18:01:20,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:01:20,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-19 18:01:20,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474811204] [2020-10-19 18:01:20,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:01:20,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:01:20,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:01:20,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:01:20,826 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 4 states. [2020-10-19 18:01:20,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:01:20,887 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-19 18:01:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:01:20,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:01:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:01:20,889 INFO L225 Difference]: With dead ends: 12 [2020-10-19 18:01:20,889 INFO L226 Difference]: Without dead ends: 12 [2020-10-19 18:01:20,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:01:20,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-19 18:01:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 18:01:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:01:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-19 18:01:20,894 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2020-10-19 18:01:20,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:01:20,894 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-19 18:01:20,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:01:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-19 18:01:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:01:20,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:01:20,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:01:21,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:01:21,106 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2020-10-19 18:01:21,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:01:21,107 INFO L82 PathProgramCache]: Analyzing trace with hash -509331102, now seen corresponding path program 1 times [2020-10-19 18:01:21,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:01:21,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778660640] [2020-10-19 18:01:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:01:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:01:21,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:01:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:01:21,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:01:21,378 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-19 18:01:21,379 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:01:21,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:01:21,598 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:01:21,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:01:21 BoogieIcfgContainer [2020-10-19 18:01:21,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:01:21,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:01:21,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:01:21,615 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:01:21,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:01:19" (3/4) ... [2020-10-19 18:01:21,618 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:01:21,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:01:21,620 INFO L168 Benchmark]: Toolchain (without parser) took 3445.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.2 MB in the beginning and 924.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 163.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:21,621 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:21,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:21,622 INFO L168 Benchmark]: Boogie Preprocessor took 68.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:21,623 INFO L168 Benchmark]: RCFGBuilder took 677.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:21,624 INFO L168 Benchmark]: TraceAbstraction took 2069.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 924.0 MB in the end (delta: 133.8 MB). Peak memory consumption was 133.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:01:21,625 INFO L168 Benchmark]: Witness Printer took 4.31 ms. Allocated memory is still 1.2 GB. Free memory is still 924.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:01:21,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 614.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 677.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2069.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 924.0 MB in the end (delta: 133.8 MB). Peak memory consumption was 133.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.31 ms. Allocated memory is still 1.2 GB. Free memory is still 924.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={11:0}, malloc(37U)={1:0}] [L534] data.str.p2 = &data VAL [data={11:0}, malloc(37U)={1:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={11:0}, malloc(37U)={1:0}] [L536] return 0; [L536] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 47 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 16 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 360 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...