./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa --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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:01:27,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:01:27,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:01:27,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:01:27,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:01:27,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:01:27,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:01:27,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:01:27,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:01:27,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:01:27,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:01:27,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:01:27,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:01:27,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:01:27,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:01:27,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:01:27,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:01:27,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:01:27,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:01:27,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:01:27,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:01:27,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:01:27,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:01:27,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:01:27,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:01:27,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:01:27,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:01:27,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:01:27,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:01:27,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:01:27,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:01:27,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:01:27,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:01:27,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:01:27,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:01:27,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:01:27,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:01:27,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:01:27,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:01:27,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:01:27,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:01:27,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 21:01:27,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:01:27,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:01:27,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:01:27,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:01:27,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:01:27,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:01:27,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:01:27,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:01:27,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:01:27,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:01:27,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:01:27,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:01:27,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:01:27,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:01:27,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:01:27,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:01:27,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:01:27,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:01:27,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:01:27,330 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2021-12-06 21:01:27,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:01:27,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:01:27,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:01:27,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:01:27,557 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:01:27,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-06 21:01:27,604 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/3f407fa78/2b0a5584a6444ac792df067b901dc658/FLAGc0d5ec19a [2021-12-06 21:01:27,990 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:01:27,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-06 21:01:28,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/3f407fa78/2b0a5584a6444ac792df067b901dc658/FLAGc0d5ec19a [2021-12-06 21:01:28,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/3f407fa78/2b0a5584a6444ac792df067b901dc658 [2021-12-06 21:01:28,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:01:28,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:01:28,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:01:28,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:01:28,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:01:28,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:01:28" (1/1) ... [2021-12-06 21:01:28,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea92a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:28, skipping insertion in model container [2021-12-06 21:01:28,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:01:28" (1/1) ... [2021-12-06 21:01:28,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:01:28,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:01:28,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:01:28,251 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) [2021-12-06 21:01:28,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42b17a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:28, skipping insertion in model container [2021-12-06 21:01:28,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:01:28,252 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-06 21:01:28,253 INFO L158 Benchmark]: Toolchain (without parser) took 240.51ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 38.5MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 21:01:28,254 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 67.3MB in the beginning and 67.1MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:01:28,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.64ms. Allocated memory is still 86.0MB. Free memory was 49.3MB in the beginning and 38.5MB in the end (delta: 10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 21:01:28,256 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 86.0MB. Free memory was 67.3MB in the beginning and 67.1MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.64ms. Allocated memory is still 86.0MB. Free memory was 49.3MB in the beginning and 38.5MB in the end (delta: 10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa --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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:01:29,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:01:29,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:01:29,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:01:29,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:01:29,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:01:29,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:01:29,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:01:29,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:01:29,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:01:29,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:01:29,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:01:29,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:01:29,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:01:29,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:01:29,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:01:29,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:01:29,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:01:29,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:01:29,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:01:29,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:01:29,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:01:29,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:01:29,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:01:29,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:01:29,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:01:29,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:01:29,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:01:29,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:01:29,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:01:29,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:01:29,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:01:29,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:01:29,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:01:29,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:01:29,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:01:29,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:01:29,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:01:29,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:01:29,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:01:29,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:01:29,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 21:01:29,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:01:29,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:01:29,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:01:29,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:01:29,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:01:29,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:01:29,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:01:29,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:01:29,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:01:29,806 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 21:01:29,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:01:29,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:01:29,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:01:29,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:01:29,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:01:29,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:01:29,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:01:29,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:01:29,809 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 21:01:29,809 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 21:01:29,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:01:29,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 21:01:29,809 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2021-12-06 21:01:30,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:01:30,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:01:30,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:01:30,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:01:30,058 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:01:30,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-06 21:01:30,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/decec6e31/c37b9004d9ce49208eb9c3b35b34685b/FLAG689c5c4da [2021-12-06 21:01:30,543 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:01:30,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-12-06 21:01:30,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/decec6e31/c37b9004d9ce49208eb9c3b35b34685b/FLAG689c5c4da [2021-12-06 21:01:30,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/data/decec6e31/c37b9004d9ce49208eb9c3b35b34685b [2021-12-06 21:01:30,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:01:30,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:01:30,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:01:30,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:01:30,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:01:30,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10aa9657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30, skipping insertion in model container [2021-12-06 21:01:30,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:01:30,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:01:30,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:01:30,841 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 21:01:30,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:01:30,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:01:30,882 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:01:30,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:01:30,939 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:01:30,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30 WrapperNode [2021-12-06 21:01:30,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:01:30,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:01:30,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:01:30,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:01:30,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,981 INFO L137 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2021-12-06 21:01:30,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:01:30,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:01:30,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:01:30,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:01:30,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:30,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:31,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:31,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:31,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:31,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:01:31,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:01:31,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:01:31,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:01:31,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (1/1) ... [2021-12-06 21:01:31,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:01:31,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:01:31,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:01:31,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:01:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 21:01:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 21:01:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:01:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 21:01:31,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:01:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:01:31,143 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:01:31,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:01:31,492 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:01:31,498 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:01:31,498 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 21:01:31,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:01:31 BoogieIcfgContainer [2021-12-06 21:01:31,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:01:31,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:01:31,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:01:31,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:01:31,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:01:30" (1/3) ... [2021-12-06 21:01:31,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a36466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:01:31, skipping insertion in model container [2021-12-06 21:01:31,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:01:30" (2/3) ... [2021-12-06 21:01:31,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a36466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:01:31, skipping insertion in model container [2021-12-06 21:01:31,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:01:31" (3/3) ... [2021-12-06 21:01:31,505 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2021-12-06 21:01:31,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:01:31,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-06 21:01:31,542 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:01:31,547 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 [2021-12-06 21:01:31,547 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-06 21:01:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 41 states have (on average 2.0) internal successors, (82), 70 states have internal predecessors, (82), 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) [2021-12-06 21:01:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 21:01:31,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:01:31,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 21:01:31,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 25 more)] === [2021-12-06 21:01:31,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:01:31,569 INFO L85 PathProgramCache]: Analyzing trace with hash 889508873, now seen corresponding path program 1 times [2021-12-06 21:01:31,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:01:31,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864590549] [2021-12-06 21:01:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:01:31,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:01:31,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:01:31,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:01:31,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 21:01:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:01:31,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 21:01:31,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:01:31,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 21:01:31,721 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-06 21:01:31,722 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-12-06 21:01:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:01:31,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:01:31,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 21:01:31,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864590549] [2021-12-06 21:01:31,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864590549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:01:31,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:01:31,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:01:31,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555710586] [2021-12-06 21:01:31,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:01:31,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:01:31,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 21:01:31,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:01:31,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:01:31,773 INFO L87 Difference]: Start difference. First operand has 71 states, 41 states have (on average 2.0) internal successors, (82), 70 states have internal predecessors, (82), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-06 21:01:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:01:31,974 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2021-12-06 21:01:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:01:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-12-06 21:01:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:01:31,981 INFO L225 Difference]: With dead ends: 63 [2021-12-06 21:01:31,982 INFO L226 Difference]: Without dead ends: 61 [2021-12-06 21:01:31,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:01:31,985 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 53 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 21:01:31,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 53 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 21:01:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-06 21:01:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-12-06 21:01:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 40 states have (on average 1.7) internal successors, (68), 60 states have internal predecessors, (68), 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) [2021-12-06 21:01:32,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2021-12-06 21:01:32,019 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 6 [2021-12-06 21:01:32,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:01:32,019 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2021-12-06 21:01:32,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-06 21:01:32,019 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2021-12-06 21:01:32,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 21:01:32,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:01:32,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 21:01:32,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:01:32,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:01:32,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 25 more)] === [2021-12-06 21:01:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:01:32,223 INFO L85 PathProgramCache]: Analyzing trace with hash 889508874, now seen corresponding path program 1 times [2021-12-06 21:01:32,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:01:32,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824414833] [2021-12-06 21:01:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:01:32,224 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:01:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:01:32,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:01:32,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 21:01:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:01:32,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 21:01:32,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:01:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 21:01:32,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-12-06 21:01:32,367 INFO L388 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 22 treesize of output 20 [2021-12-06 21:01:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:01:32,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:01:32,418 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 21:01:32,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824414833] [2021-12-06 21:01:32,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824414833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:01:32,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:01:32,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:01:32,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618882677] [2021-12-06 21:01:32,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:01:32,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 21:01:32,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 21:01:32,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 21:01:32,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 21:01:32,421 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 21:01:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:01:32,670 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2021-12-06 21:01:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 21:01:32,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-12-06 21:01:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:01:32,672 INFO L225 Difference]: With dead ends: 126 [2021-12-06 21:01:32,673 INFO L226 Difference]: Without dead ends: 126 [2021-12-06 21:01:32,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 21:01:32,674 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 76 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 21:01:32,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 154 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 21:01:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-12-06 21:01:32,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 64. [2021-12-06 21:01:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.6744186046511629) internal successors, (72), 63 states have internal predecessors, (72), 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) [2021-12-06 21:01:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-12-06 21:01:32,681 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 6 [2021-12-06 21:01:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:01:32,681 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-12-06 21:01:32,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-12-06 21:01:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-12-06 21:01:32,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-06 21:01:32,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:01:32,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-06 21:01:32,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 21:01:32,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:01:32,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 25 more)] === [2021-12-06 21:01:32,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:01:32,886 INFO L85 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2021-12-06 21:01:32,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:01:32,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269484827] [2021-12-06 21:01:32,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:01:32,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:01:32,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:01:32,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:01:32,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 21:01:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:01:33,016 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:01:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:01:33,107 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 21:01:33,107 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 21:01:33,108 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION (28 of 29 remaining) [2021-12-06 21:01:33,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (27 of 29 remaining) [2021-12-06 21:01:33,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (26 of 29 remaining) [2021-12-06 21:01:33,112 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (25 of 29 remaining) [2021-12-06 21:01:33,112 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (24 of 29 remaining) [2021-12-06 21:01:33,112 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (23 of 29 remaining) [2021-12-06 21:01:33,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (22 of 29 remaining) [2021-12-06 21:01:33,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (21 of 29 remaining) [2021-12-06 21:01:33,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (20 of 29 remaining) [2021-12-06 21:01:33,113 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (19 of 29 remaining) [2021-12-06 21:01:33,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (18 of 29 remaining) [2021-12-06 21:01:33,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (17 of 29 remaining) [2021-12-06 21:01:33,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (16 of 29 remaining) [2021-12-06 21:01:33,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (15 of 29 remaining) [2021-12-06 21:01:33,115 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (14 of 29 remaining) [2021-12-06 21:01:33,115 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (13 of 29 remaining) [2021-12-06 21:01:33,115 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (12 of 29 remaining) [2021-12-06 21:01:33,115 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (11 of 29 remaining) [2021-12-06 21:01:33,115 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (10 of 29 remaining) [2021-12-06 21:01:33,116 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (9 of 29 remaining) [2021-12-06 21:01:33,116 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (8 of 29 remaining) [2021-12-06 21:01:33,116 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (7 of 29 remaining) [2021-12-06 21:01:33,116 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE (6 of 29 remaining) [2021-12-06 21:01:33,117 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE (5 of 29 remaining) [2021-12-06 21:01:33,117 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (4 of 29 remaining) [2021-12-06 21:01:33,117 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (3 of 29 remaining) [2021-12-06 21:01:33,118 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (2 of 29 remaining) [2021-12-06 21:01:33,118 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (1 of 29 remaining) [2021-12-06 21:01:33,118 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2021-12-06 21:01:33,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 21:01:33,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:01:33,328 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 21:01:33,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 21:01:33,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 09:01:33 BoogieIcfgContainer [2021-12-06 21:01:33,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 21:01:33,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:01:33,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:01:33,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:01:33,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:01:31" (3/4) ... [2021-12-06 21:01:33,375 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 21:01:33,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 21:01:33,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:01:33,400 INFO L158 Benchmark]: Toolchain (without parser) took 2831.44ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 51.9MB in the beginning and 47.0MB in the end (delta: 4.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2021-12-06 21:01:33,400 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:01:33,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.52ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 41.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 21:01:33,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.15ms. Allocated memory is still 69.2MB. Free memory was 41.7MB in the beginning and 39.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:01:33,401 INFO L158 Benchmark]: Boogie Preprocessor took 28.85ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:01:33,401 INFO L158 Benchmark]: RCFGBuilder took 488.07ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 37.8MB in the beginning and 72.4MB in the end (delta: -34.6MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-12-06 21:01:33,402 INFO L158 Benchmark]: TraceAbstraction took 1870.74ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 49.1MB in the end (delta: 22.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-12-06 21:01:33,402 INFO L158 Benchmark]: Witness Printer took 27.14ms. Allocated memory is still 98.6MB. Free memory was 48.8MB in the beginning and 47.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:01:33,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.52ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 41.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.15ms. Allocated memory is still 69.2MB. Free memory was 41.7MB in the beginning and 39.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.85ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 488.07ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 37.8MB in the beginning and 72.4MB in the end (delta: -34.6MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1870.74ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 49.1MB in the end (delta: 22.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 27.14ms. Allocated memory is still 98.6MB. Free memory was 48.8MB in the beginning and 47.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 518]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) VAL [N=1073741824] [L535] CALL lis(a, N) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=1073741824, a={6:5}, a={6:5}, best={1:0}, i=0, max=0, N=1073741824, prev={2:0}] [L517] COND TRUE i < N VAL [\old(N)=1073741824, a={6:5}, a={6:5}, best={1:0}, i=0, max=0, N=1073741824, prev={2:0}] [L518] best[i] = 1 - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 518]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 521]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 522]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 525]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 525]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 530]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 207 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 107 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 62 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 5 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 14 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 proved your program to be incorrect! [2021-12-06 21:01:33,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2e6fa0-99cc-4e01-9ca6-8fdfc9db347e/bin/uautomizer-DrprNOufMa/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)