./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/uthash-2.0.2/uthash_JEN_test7-1.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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:46:17,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:46:17,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:46:17,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:46:17,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:46:17,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:46:17,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:46:17,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:46:17,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:46:17,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:46:17,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:46:17,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:46:17,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:46:17,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:46:17,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:46:17,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:46:17,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:46:17,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:46:17,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:46:17,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:46:17,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:46:17,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:46:17,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:46:17,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:46:17,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:46:17,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:46:17,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:46:17,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:46:17,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:46:17,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:46:17,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:46:17,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:46:17,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:46:17,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:46:17,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:46:17,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:46:17,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:46:17,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:46:17,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:46:17,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:46:17,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:46:17,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 16:46:17,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:46:17,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:46:17,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:46:17,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:46:17,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 16:46:17,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 16:46:17,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:46:17,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:46:17,474 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:46:17,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:46:17,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 16:46:17,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:46:17,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:46:17,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 16:46:17,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:46:17,476 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 16:46:17,476 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 16:46:17,476 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 16:46:17,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 16:46:17,477 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 16:46:17,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 16:46:17,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:46:17,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:46:17,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:46:17,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 16:46:17,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:46:17,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:46:17,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 16:46:17,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 16:46:17,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 16:46:17,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:46:17,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2021-12-15 16:46:17,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:46:17,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:46:17,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:46:17,708 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:46:17,708 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:46:17,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2021-12-15 16:46:17,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4df5b49/0f4d4bf629f8426e9d2292079f5e4193/FLAG762f189fc [2021-12-15 16:46:18,209 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:46:18,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2021-12-15 16:46:18,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4df5b49/0f4d4bf629f8426e9d2292079f5e4193/FLAG762f189fc [2021-12-15 16:46:18,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4df5b49/0f4d4bf629f8426e9d2292079f5e4193 [2021-12-15 16:46:18,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:46:18,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:46:18,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:46:18,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:46:18,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:46:18,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:46:18" (1/1) ... [2021-12-15 16:46:18,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeb012f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:18, skipping insertion in model container [2021-12-15 16:46:18,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:46:18" (1/1) ... [2021-12-15 16:46:18,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:46:18,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:46:18,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2021-12-15 16:46:18,680 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2021-12-15 16:46:18,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2021-12-15 16:46:18,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:46:18,707 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-12-15 16:46:18,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4376851b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:18, skipping insertion in model container [2021-12-15 16:46:18,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:46:18,709 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 16:46:18,711 INFO L158 Benchmark]: Toolchain (without parser) took 462.10ms. Allocated memory is still 88.1MB. Free memory was 54.2MB in the beginning and 55.8MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:46:18,712 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 64.4MB in the end (delta: 27.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:46:18,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.07ms. Allocated memory is still 88.1MB. Free memory was 54.0MB in the beginning and 55.8MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:46:18,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 64.4MB in the end (delta: 27.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.07ms. Allocated memory is still 88.1MB. Free memory was 54.0MB in the beginning and 55.8MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/uthash-2.0.2/uthash_JEN_test7-1.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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:46:20,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:46:20,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:46:20,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:46:20,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:46:20,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:46:20,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:46:20,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:46:20,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:46:20,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:46:20,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:46:20,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:46:20,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:46:20,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:46:20,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:46:20,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:46:20,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:46:20,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:46:20,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:46:20,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:46:20,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:46:20,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:46:20,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:46:20,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:46:20,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:46:20,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:46:20,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:46:20,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:46:20,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:46:20,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:46:20,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:46:20,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:46:20,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:46:20,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:46:20,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:46:20,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:46:20,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:46:20,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:46:20,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:46:20,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:46:20,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:46:20,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 16:46:20,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:46:20,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:46:20,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:46:20,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:46:20,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 16:46:20,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 16:46:20,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:46:20,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:46:20,259 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:46:20,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:46:20,259 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 16:46:20,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 16:46:20,261 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 16:46:20,261 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 16:46:20,261 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 16:46:20,261 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 16:46:20,261 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:46:20,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:46:20,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:46:20,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 16:46:20,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:46:20,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:46:20,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 16:46:20,262 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 16:46:20,262 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 16:46:20,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:46:20,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 16:46:20,263 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2021-12-15 16:46:20,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:46:20,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:46:20,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:46:20,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:46:20,562 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:46:20,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2021-12-15 16:46:20,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6d6b0c4/e9c837e3aacd46cba4f8d312e95a3a91/FLAG593c3ffce [2021-12-15 16:46:21,071 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:46:21,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2021-12-15 16:46:21,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6d6b0c4/e9c837e3aacd46cba4f8d312e95a3a91/FLAG593c3ffce [2021-12-15 16:46:21,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6d6b0c4/e9c837e3aacd46cba4f8d312e95a3a91 [2021-12-15 16:46:21,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:46:21,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:46:21,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:46:21,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:46:21,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:46:21,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:46:21" (1/1) ... [2021-12-15 16:46:21,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163b07fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:21, skipping insertion in model container [2021-12-15 16:46:21,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:46:21" (1/1) ... [2021-12-15 16:46:21,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:46:21,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:46:21,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2021-12-15 16:46:21,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2021-12-15 16:46:21,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2021-12-15 16:46:21,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:46:21,965 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 16:46:21,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:46:21,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2021-12-15 16:46:22,040 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2021-12-15 16:46:22,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2021-12-15 16:46:22,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:46:22,048 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 16:46:22,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2021-12-15 16:46:22,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2021-12-15 16:46:22,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2021-12-15 16:46:22,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:46:22,156 INFO L208 MainTranslator]: Completed translation [2021-12-15 16:46:22,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22 WrapperNode [2021-12-15 16:46:22,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:46:22,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 16:46:22,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 16:46:22,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 16:46:22,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,256 INFO L137 Inliner]: procedures = 179, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1011 [2021-12-15 16:46:22,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 16:46:22,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 16:46:22,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 16:46:22,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 16:46:22,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 16:46:22,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 16:46:22,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 16:46:22,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 16:46:22,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (1/1) ... [2021-12-15 16:46:22,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 16:46:22,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:46:22,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 16:46:22,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 16:46:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-15 16:46:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 16:46:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-15 16:46:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 16:46:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 16:46:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 16:46:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 16:46:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 16:46:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 16:46:22,632 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 16:46:22,634 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 16:46:22,636 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 16:46:25,684 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 16:46:25,696 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 16:46:25,697 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-12-15 16:46:25,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:46:25 BoogieIcfgContainer [2021-12-15 16:46:25,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 16:46:25,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 16:46:25,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 16:46:25,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 16:46:25,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 04:46:21" (1/3) ... [2021-12-15 16:46:25,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff56ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 04:46:25, skipping insertion in model container [2021-12-15 16:46:25,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:46:22" (2/3) ... [2021-12-15 16:46:25,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bff56ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 04:46:25, skipping insertion in model container [2021-12-15 16:46:25,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:46:25" (3/3) ... [2021-12-15 16:46:25,709 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test7-1.i [2021-12-15 16:46:25,713 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 16:46:25,713 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 530 error locations. [2021-12-15 16:46:25,756 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 16:46:25,760 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 16:46:25,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2021-12-15 16:46:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 1050 states, 518 states have (on average 2.2548262548262548) internal successors, (1168), 1045 states have internal predecessors, (1168), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 16:46:25,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-15 16:46:25,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:46:25,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-15 16:46:25,785 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 526 more)] === [2021-12-15 16:46:25,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:46:25,788 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2021-12-15 16:46:25,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 16:46:25,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686396163] [2021-12-15 16:46:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:46:25,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 16:46:25,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 16:46:25,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 16:46:25,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 16:46:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:46:25,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 16:46:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:46:26,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-15 16:46:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:46:26,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 16:46:26,051 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 16:46:26,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686396163] [2021-12-15 16:46:26,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686396163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:46:26,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:46:26,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:46:26,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492976937] [2021-12-15 16:46:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:46:26,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:46:26,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 16:46:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:46:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:46:26,086 INFO L87 Difference]: Start difference. First operand has 1050 states, 518 states have (on average 2.2548262548262548) internal successors, (1168), 1045 states have internal predecessors, (1168), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:46:27,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:46:27,367 INFO L93 Difference]: Finished difference Result 1041 states and 1096 transitions. [2021-12-15 16:46:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:46:27,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-15 16:46:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:46:27,380 INFO L225 Difference]: With dead ends: 1041 [2021-12-15 16:46:27,380 INFO L226 Difference]: Without dead ends: 1039 [2021-12-15 16:46:27,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:46:27,384 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 969 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 16:46:27,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 670 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 16:46:27,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2021-12-15 16:46:27,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1031. [2021-12-15 16:46:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 516 states have (on average 2.0949612403100777) internal successors, (1081), 1026 states have internal predecessors, (1081), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 16:46:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1087 transitions. [2021-12-15 16:46:27,442 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1087 transitions. Word has length 3 [2021-12-15 16:46:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:46:27,443 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1087 transitions. [2021-12-15 16:46:27,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:46:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1087 transitions. [2021-12-15 16:46:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-12-15 16:46:27,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:46:27,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-12-15 16:46:27,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 16:46:27,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 16:46:27,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 526 more)] === [2021-12-15 16:46:27,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:46:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2021-12-15 16:46:27,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 16:46:27,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297344428] [2021-12-15 16:46:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:46:27,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 16:46:27,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 16:46:27,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 16:46:27,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 16:46:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:46:27,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 16:46:27,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:46:27,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-15 16:46:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:46:27,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 16:46:27,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 16:46:27,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297344428] [2021-12-15 16:46:27,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297344428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:46:27,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:46:27,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:46:27,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134849084] [2021-12-15 16:46:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:46:27,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 16:46:27,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 16:46:27,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 16:46:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:46:27,776 INFO L87 Difference]: Start difference. First operand 1031 states and 1087 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:46:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:46:29,620 INFO L93 Difference]: Finished difference Result 1421 states and 1506 transitions. [2021-12-15 16:46:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 16:46:29,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-12-15 16:46:29,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 16:46:29,624 INFO L225 Difference]: With dead ends: 1421 [2021-12-15 16:46:29,624 INFO L226 Difference]: Without dead ends: 1421 [2021-12-15 16:46:29,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 16:46:29,625 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 419 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-15 16:46:29,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1462 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-15 16:46:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-12-15 16:46:29,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1232. [2021-12-15 16:46:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 718 states have (on average 2.0807799442896937) internal successors, (1494), 1227 states have internal predecessors, (1494), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 16:46:29,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1500 transitions. [2021-12-15 16:46:29,643 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1500 transitions. Word has length 3 [2021-12-15 16:46:29,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 16:46:29,643 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1500 transitions. [2021-12-15 16:46:29,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:46:29,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1500 transitions. [2021-12-15 16:46:29,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-15 16:46:29,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 16:46:29,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 16:46:29,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 16:46:29,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 16:46:29,849 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 526 more)] === [2021-12-15 16:46:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:46:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1466973012, now seen corresponding path program 1 times [2021-12-15 16:46:29,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 16:46:29,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046859080] [2021-12-15 16:46:29,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:46:29,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 16:46:29,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 16:46:29,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 16:46:29,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 16:46:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:46:29,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 16:46:29,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 16:46:30,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-15 16:46:30,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-15 16:46:30,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 16:46:30,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-15 16:46:30,059 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-15 16:46:30,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-12-15 16:46:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 16:46:30,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 16:46:30,076 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 16:46:30,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046859080] [2021-12-15 16:46:30,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046859080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:46:30,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:46:30,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 16:46:30,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534204224] [2021-12-15 16:46:30,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:46:30,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 16:46:30,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 16:46:30,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 16:46:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 16:46:30,078 INFO L87 Difference]: Start difference. First operand 1232 states and 1500 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 16:46:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 16:46:30,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 16:46:30,745 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 1063 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 16:46:30,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 225 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 16:46:30,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 16:46:30,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 16:46:30,953 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructOldVarsAssignment(OldVarsAssignmentCache.java:125) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getOldVarsAssignment(OldVarsAssignmentCache.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:387) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkReturn(IncrementalHoareTripleChecker.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkReturn(ChainingHoareTripleChecker.java:486) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkReturn(ChainingHoareTripleChecker.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkReturn(CachingHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$ReturnSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:442) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.returnSuccessors(AbstractInterpolantAutomaton.java:279) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.returnSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.returnSuccessors(TotalizeNwa.java:308) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.returnSuccessors(ComplementDeterministicNwa.java:142) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.returnSuccessors(ProductNwa.java:284) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.returnSuccessorsGivenHier(ProductNwa.java:308) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addReturnsAndSuccessors(NestedWordAutomatonReachableStates.java:1118) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:950) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 16:46:30,955 INFO L158 Benchmark]: Toolchain (without parser) took 9515.95ms. Allocated memory was 67.1MB in the beginning and 132.1MB in the end (delta: 65.0MB). Free memory was 45.3MB in the beginning and 76.9MB in the end (delta: -31.6MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2021-12-15 16:46:30,956 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:46:30,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.85ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 45.2MB in the beginning and 51.2MB in the end (delta: -6.0MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-12-15 16:46:30,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.30ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 44.6MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 16:46:30,957 INFO L158 Benchmark]: Boogie Preprocessor took 118.87ms. Allocated memory is still 86.0MB. Free memory was 44.6MB in the beginning and 60.0MB in the end (delta: -15.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 16:46:30,957 INFO L158 Benchmark]: RCFGBuilder took 3323.72ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 60.0MB in the beginning and 45.4MB in the end (delta: 14.6MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2021-12-15 16:46:30,958 INFO L158 Benchmark]: TraceAbstraction took 5251.64ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 45.4MB in the beginning and 76.9MB in the end (delta: -31.5MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-12-15 16:46:30,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.85ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 45.2MB in the beginning and 51.2MB in the end (delta: -6.0MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.30ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 44.6MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.87ms. Allocated memory is still 86.0MB. Free memory was 44.6MB in the beginning and 60.0MB in the end (delta: -15.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3323.72ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 60.0MB in the beginning and 45.4MB in the end (delta: 14.6MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5251.64ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 45.4MB in the beginning and 76.9MB in the end (delta: -31.5MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 16:46:30,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable