./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer --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 ef75293aeb91e37969e4557310245e0c38a479cd .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer --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 ef75293aeb91e37969e4557310245e0c38a479cd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:47:13,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:47:13,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:47:13,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:47:13,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:47:13,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:47:13,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:47:13,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:47:13,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:47:13,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:47:13,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:47:13,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:47:13,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:47:13,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:47:13,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:47:13,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:47:13,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:47:13,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:47:13,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:47:13,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:47:13,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:47:13,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:47:13,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:47:13,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:47:13,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:47:13,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:47:13,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:47:13,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:47:13,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:47:13,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:47:13,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:47:13,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:47:13,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:47:13,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:47:13,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:47:13,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:47:13,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:47:13,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:47:13,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:47:13,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:47:13,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:47:13,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 18:47:13,193 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:47:13,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:47:13,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:47:13,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:47:13,195 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:47:13,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:47:13,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:47:13,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:47:13,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:47:13,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:47:13,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:47:13,197 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:47:13,197 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:47:13,197 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:47:13,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:47:13,197 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:47:13,198 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:47:13,198 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:47:13,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:47:13,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:47:13,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:47:13,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:47:13,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:47:13,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:47:13,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:47:13,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:47:13,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:47:13,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:47:13,200 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-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef75293aeb91e37969e4557310245e0c38a479cd [2020-11-29 18:47:13,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:47:13,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:47:13,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:47:13,512 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:47:13,513 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:47:13,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-29 18:47:13,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/d0f862cc9/7c3b1dbcaef2436887e5c7b8664be731/FLAG934921f04 [2020-11-29 18:47:14,150 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:47:14,151 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-29 18:47:14,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/d0f862cc9/7c3b1dbcaef2436887e5c7b8664be731/FLAG934921f04 [2020-11-29 18:47:14,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/d0f862cc9/7c3b1dbcaef2436887e5c7b8664be731 [2020-11-29 18:47:14,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:47:14,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:47:14,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:14,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:47:14,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:47:14,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:14" (1/1) ... [2020-11-29 18:47:14,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19774477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:14, skipping insertion in model container [2020-11-29 18:47:14,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:14" (1/1) ... [2020-11-29 18:47:14,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:47:14,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:47:14,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:14,871 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) [2020-11-29 18:47:14,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@675af9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:14, skipping insertion in model container [2020-11-29 18:47:14,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:14,873 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 18:47:14,875 INFO L168 Benchmark]: Toolchain (without parser) took 412.17 ms. Allocated memory is still 104.9 MB. Free memory was 68.8 MB in the beginning and 79.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:14,876 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:14,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.89 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 80.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:14,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.89 ms. Allocated memory is still 104.9 MB. Free memory was 68.6 MB in the beginning and 80.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:47:17,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:47:17,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:47:17,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:47:17,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:47:17,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:47:17,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:47:17,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:47:17,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:47:17,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:47:17,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:47:17,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:47:17,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:47:17,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:47:17,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:47:17,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:47:17,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:47:17,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:47:17,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:47:17,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:47:17,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:47:17,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:47:17,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:47:17,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:47:17,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:47:17,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:47:17,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:47:17,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:47:17,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:47:17,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:47:17,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:47:17,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:47:17,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:47:17,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:47:17,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:47:17,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:47:17,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:47:17,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:47:17,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:47:17,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:47:17,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:47:17,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 18:47:17,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:47:17,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:47:17,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:47:17,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:47:17,609 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:47:17,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:47:17,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:47:17,610 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:47:17,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:47:17,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:47:17,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:47:17,612 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 18:47:17,612 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 18:47:17,613 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 18:47:17,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:47:17,613 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 18:47:17,613 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:47:17,614 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:47:17,614 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:47:17,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:47:17,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:47:17,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:47:17,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:47:17,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:47:17,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:47:17,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:47:17,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:47:17,616 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:47:17,616 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:47:17,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:47:17,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:47:17,617 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-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef75293aeb91e37969e4557310245e0c38a479cd [2020-11-29 18:47:18,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:47:18,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:47:18,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:47:18,113 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:47:18,114 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:47:18,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-29 18:47:18,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/f1fea5ade/8fbb008acdd84c0c91258b5a5d9f5158/FLAG68352ea0d [2020-11-29 18:47:18,971 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:47:18,974 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2020-11-29 18:47:18,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/f1fea5ade/8fbb008acdd84c0c91258b5a5d9f5158/FLAG68352ea0d [2020-11-29 18:47:19,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/data/f1fea5ade/8fbb008acdd84c0c91258b5a5d9f5158 [2020-11-29 18:47:19,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:47:19,227 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 18:47:19,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:19,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:47:19,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:47:19,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7b9a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19, skipping insertion in model container [2020-11-29 18:47:19,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:47:19,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:47:19,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:19,658 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 18:47:19,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:47:19,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:19,750 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:47:19,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:47:19,902 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:47:19,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19 WrapperNode [2020-11-29 18:47:19,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:47:19,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:47:19,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:47:19,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:47:19,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:19,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:20,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... [2020-11-29 18:47:20,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:47:20,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:47:20,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:47:20,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:47:20,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:47:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 18:47:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:47:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 18:47:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 18:47:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 18:47:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-29 18:47:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-29 18:47:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-29 18:47:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2020-11-29 18:47:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 18:47:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2020-11-29 18:47:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 18:47:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 18:47:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 18:47:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 18:47:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 18:47:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 18:47:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 18:47:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 18:47:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 18:47:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 18:47:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 18:47:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 18:47:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 18:47:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 18:47:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 18:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 18:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 18:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 18:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-29 18:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-29 18:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-29 18:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 18:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 18:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 18:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 18:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 18:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 18:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 18:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 18:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 18:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 18:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 18:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 18:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 18:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 18:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 18:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 18:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 18:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 18:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 18:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 18:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 18:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 18:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 18:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 18:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 18:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 18:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 18:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 18:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 18:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 18:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 18:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 18:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 18:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 18:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 18:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 18:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 18:47:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 18:47:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 18:47:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 18:47:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 18:47:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 18:47:20,123 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 18:47:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 18:47:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 18:47:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 18:47:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 18:47:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 18:47:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 18:47:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 18:47:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 18:47:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 18:47:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 18:47:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 18:47:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 18:47:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 18:47:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 18:47:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 18:47:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 18:47:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 18:47:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 18:47:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 18:47:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 18:47:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 18:47:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 18:47:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 18:47:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 18:47:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 18:47:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 18:47:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 18:47:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 18:47:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 18:47:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 18:47:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 18:47:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 18:47:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 18:47:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 18:47:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 18:47:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 18:47:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 18:47:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 18:47:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 18:47:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 18:47:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 18:47:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 18:47:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 18:47:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 18:47:20,131 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2020-11-29 18:47:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2020-11-29 18:47:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 18:47:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:47:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 18:47:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 18:47:20,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 18:47:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:47:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 18:47:20,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 18:47:20,842 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:47:20,842 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 18:47:20,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:20 BoogieIcfgContainer [2020-11-29 18:47:20,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:47:20,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:47:20,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:47:20,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:47:20,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:47:19" (1/3) ... [2020-11-29 18:47:20,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c34c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:20, skipping insertion in model container [2020-11-29 18:47:20,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:19" (2/3) ... [2020-11-29 18:47:20,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c34c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:20, skipping insertion in model container [2020-11-29 18:47:20,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:20" (3/3) ... [2020-11-29 18:47:20,854 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2020-11-29 18:47:20,866 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:47:20,871 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-11-29 18:47:20,885 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-11-29 18:47:20,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:47:20,908 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 18:47:20,908 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:47:20,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:47:20,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:47:20,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:47:20,918 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:47:20,918 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:47:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-29 18:47:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 18:47:20,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:20,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:20,950 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:20,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:20,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1774917903, now seen corresponding path program 1 times [2020-11-29 18:47:20,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:20,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914463513] [2020-11-29 18:47:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:21,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:47:21,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:21,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:21,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914463513] [2020-11-29 18:47:21,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:21,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:47:21,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652804534] [2020-11-29 18:47:21,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:47:21,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:21,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:47:21,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:21,286 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2020-11-29 18:47:21,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:21,436 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-11-29 18:47:21,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:47:21,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-29 18:47:21,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:21,449 INFO L225 Difference]: With dead ends: 55 [2020-11-29 18:47:21,450 INFO L226 Difference]: Without dead ends: 51 [2020-11-29 18:47:21,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-29 18:47:21,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 39. [2020-11-29 18:47:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 18:47:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-11-29 18:47:21,507 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2020-11-29 18:47:21,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:21,507 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-11-29 18:47:21,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:47:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-11-29 18:47:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:47:21,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:21,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:21,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:47:21,728 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:21,729 INFO L82 PathProgramCache]: Analyzing trace with hash -812119182, now seen corresponding path program 1 times [2020-11-29 18:47:21,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:21,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197083315] [2020-11-29 18:47:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:21,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:47:21,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:21,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:21,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197083315] [2020-11-29 18:47:21,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:21,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-29 18:47:21,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605905595] [2020-11-29 18:47:21,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:47:21,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:21,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:47:21,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:21,944 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2020-11-29 18:47:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:21,968 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-11-29 18:47:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:47:21,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-29 18:47:21,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:21,970 INFO L225 Difference]: With dead ends: 39 [2020-11-29 18:47:21,970 INFO L226 Difference]: Without dead ends: 39 [2020-11-29 18:47:21,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:21,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-29 18:47:21,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-29 18:47:21,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 18:47:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-11-29 18:47:21,983 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 9 [2020-11-29 18:47:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:21,983 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-11-29 18:47:21,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:47:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-11-29 18:47:21,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 18:47:21,984 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:21,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:22,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:47:22,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:22,186 INFO L82 PathProgramCache]: Analyzing trace with hash -386852574, now seen corresponding path program 1 times [2020-11-29 18:47:22,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:22,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795055842] [2020-11-29 18:47:22,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:22,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:47:22,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:22,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:22,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795055842] [2020-11-29 18:47:22,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:22,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-29 18:47:22,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574786577] [2020-11-29 18:47:22,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:47:22,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:22,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:47:22,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:22,418 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2020-11-29 18:47:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:22,480 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-11-29 18:47:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:47:22,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-29 18:47:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:22,482 INFO L225 Difference]: With dead ends: 46 [2020-11-29 18:47:22,482 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 18:47:22,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 18:47:22,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-11-29 18:47:22,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 18:47:22,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-11-29 18:47:22,490 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2020-11-29 18:47:22,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:22,491 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-11-29 18:47:22,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:47:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-11-29 18:47:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:47:22,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:22,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:22,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:47:22,708 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:22,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:22,709 INFO L82 PathProgramCache]: Analyzing trace with hash -171591004, now seen corresponding path program 1 times [2020-11-29 18:47:22,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:22,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537061214] [2020-11-29 18:47:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:22,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:47:22,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:22,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:23,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537061214] [2020-11-29 18:47:23,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:23,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-11-29 18:47:23,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449729313] [2020-11-29 18:47:23,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:47:23,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:23,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:47:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:47:23,032 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2020-11-29 18:47:23,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:23,132 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2020-11-29 18:47:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:47:23,134 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-29 18:47:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:23,135 INFO L225 Difference]: With dead ends: 52 [2020-11-29 18:47:23,135 INFO L226 Difference]: Without dead ends: 52 [2020-11-29 18:47:23,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:47:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-29 18:47:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2020-11-29 18:47:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-29 18:47:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-11-29 18:47:23,147 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2020-11-29 18:47:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:23,147 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-11-29 18:47:23,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:47:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-11-29 18:47:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:47:23,150 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:23,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:23,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 18:47:23,369 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:23,370 INFO L82 PathProgramCache]: Analyzing trace with hash -170667483, now seen corresponding path program 1 times [2020-11-29 18:47:23,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:23,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922056627] [2020-11-29 18:47:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:23,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:47:23,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:23,625 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:47:23,626 INFO L384 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 1 case distinctions, treesize of input 9 treesize of output 25 [2020-11-29 18:47:23,627 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:47:23,656 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-29 18:47:23,658 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:47:23,658 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-11-29 18:47:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:23,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:23,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922056627] [2020-11-29 18:47:23,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:23,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 18:47:23,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007877701] [2020-11-29 18:47:23,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:47:23,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:23,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:47:23,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:47:23,738 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2020-11-29 18:47:23,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:23,903 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-11-29 18:47:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:47:23,906 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-29 18:47:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:23,907 INFO L225 Difference]: With dead ends: 45 [2020-11-29 18:47:23,907 INFO L226 Difference]: Without dead ends: 45 [2020-11-29 18:47:23,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:47:23,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-29 18:47:23,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-11-29 18:47:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 18:47:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-11-29 18:47:23,921 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2020-11-29 18:47:23,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:23,922 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-11-29 18:47:23,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:47:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-11-29 18:47:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:47:23,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:23,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:24,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 18:47:24,142 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:24,143 INFO L82 PathProgramCache]: Analyzing trace with hash -170667482, now seen corresponding path program 1 times [2020-11-29 18:47:24,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:24,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813400090] [2020-11-29 18:47:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:24,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 18:47:24,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:24,380 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:47:24,380 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:47:24,393 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:47:24,393 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:47:24,394 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-11-29 18:47:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:24,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:25,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:25,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813400090] [2020-11-29 18:47:25,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:25,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-29 18:47:25,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946795215] [2020-11-29 18:47:25,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 18:47:25,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:25,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 18:47:25,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-11-29 18:47:25,125 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 12 states. [2020-11-29 18:47:25,823 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-11-29 18:47:26,545 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-11-29 18:47:27,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:27,084 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2020-11-29 18:47:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 18:47:27,085 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-11-29 18:47:27,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:27,087 INFO L225 Difference]: With dead ends: 121 [2020-11-29 18:47:27,087 INFO L226 Difference]: Without dead ends: 119 [2020-11-29 18:47:27,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-11-29 18:47:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-29 18:47:27,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 63. [2020-11-29 18:47:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-29 18:47:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-11-29 18:47:27,097 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 17 [2020-11-29 18:47:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:27,098 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-11-29 18:47:27,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 18:47:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-11-29 18:47:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:47:27,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:27,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:27,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 18:47:27,306 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:27,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2028589773, now seen corresponding path program 1 times [2020-11-29 18:47:27,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:27,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398964013] [2020-11-29 18:47:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:27,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:47:27,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:27,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:27,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398964013] [2020-11-29 18:47:27,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:27,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:47:27,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580147886] [2020-11-29 18:47:27,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:47:27,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:27,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:47:27,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:27,565 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 3 states. [2020-11-29 18:47:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:27,576 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2020-11-29 18:47:27,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:47:27,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 18:47:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:27,583 INFO L225 Difference]: With dead ends: 62 [2020-11-29 18:47:27,583 INFO L226 Difference]: Without dead ends: 62 [2020-11-29 18:47:27,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:47:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-11-29 18:47:27,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-11-29 18:47:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-29 18:47:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-11-29 18:47:27,591 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 17 [2020-11-29 18:47:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:27,591 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-11-29 18:47:27,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:47:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-11-29 18:47:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 18:47:27,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:27,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:27,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 18:47:27,817 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:27,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:27,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1538226398, now seen corresponding path program 1 times [2020-11-29 18:47:27,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:27,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040605661] [2020-11-29 18:47:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:27,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:47:27,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:28,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:28,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040605661] [2020-11-29 18:47:28,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:28,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2020-11-29 18:47:28,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703451801] [2020-11-29 18:47:28,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:47:28,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:28,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:47:28,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:47:28,116 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 6 states. [2020-11-29 18:47:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:28,200 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-11-29 18:47:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:47:28,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-11-29 18:47:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:28,202 INFO L225 Difference]: With dead ends: 61 [2020-11-29 18:47:28,202 INFO L226 Difference]: Without dead ends: 61 [2020-11-29 18:47:28,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:47:28,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-29 18:47:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-29 18:47:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-29 18:47:28,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2020-11-29 18:47:28,213 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 18 [2020-11-29 18:47:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:28,214 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2020-11-29 18:47:28,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:47:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2020-11-29 18:47:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 18:47:28,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:28,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:28,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 18:47:28,416 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:28,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:28,416 INFO L82 PathProgramCache]: Analyzing trace with hash -440378001, now seen corresponding path program 1 times [2020-11-29 18:47:28,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:28,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15229520] [2020-11-29 18:47:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:28,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:47:28,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:28,577 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-11-29 18:47:28,577 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 18:47:28,580 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 18:47:28,580 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 18:47:28,581 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 18:47:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:28,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:28,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15229520] [2020-11-29 18:47:28,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:28,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 18:47:28,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343450576] [2020-11-29 18:47:28,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:47:28,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:28,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:47:28,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:47:28,707 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand 5 states. [2020-11-29 18:47:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:28,859 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2020-11-29 18:47:28,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:47:28,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-29 18:47:28,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:28,862 INFO L225 Difference]: With dead ends: 74 [2020-11-29 18:47:28,862 INFO L226 Difference]: Without dead ends: 74 [2020-11-29 18:47:28,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:47:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-29 18:47:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2020-11-29 18:47:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 18:47:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2020-11-29 18:47:28,875 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 19 [2020-11-29 18:47:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:28,876 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2020-11-29 18:47:28,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:47:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2020-11-29 18:47:28,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 18:47:28,877 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:28,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:29,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-29 18:47:29,086 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:29,087 INFO L82 PathProgramCache]: Analyzing trace with hash -766816059, now seen corresponding path program 1 times [2020-11-29 18:47:29,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:29,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152080935] [2020-11-29 18:47:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:29,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:47:29,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:29,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:29,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152080935] [2020-11-29 18:47:29,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:29,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 18:47:29,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673450160] [2020-11-29 18:47:29,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:47:29,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:29,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:47:29,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:47:29,451 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 10 states. [2020-11-29 18:47:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:29,610 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2020-11-29 18:47:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:47:29,611 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-11-29 18:47:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:29,612 INFO L225 Difference]: With dead ends: 60 [2020-11-29 18:47:29,612 INFO L226 Difference]: Without dead ends: 60 [2020-11-29 18:47:29,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-29 18:47:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-29 18:47:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-11-29 18:47:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-11-29 18:47:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2020-11-29 18:47:29,618 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 20 [2020-11-29 18:47:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:29,619 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-11-29 18:47:29,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:47:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2020-11-29 18:47:29,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:47:29,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:29,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:29,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-29 18:47:29,836 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:29,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:29,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1360467952, now seen corresponding path program 1 times [2020-11-29 18:47:29,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:29,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053523649] [2020-11-29 18:47:29,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:30,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:47:30,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:30,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:30,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053523649] [2020-11-29 18:47:30,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:30,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2020-11-29 18:47:30,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882266775] [2020-11-29 18:47:30,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 18:47:30,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:30,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:47:30,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:47:30,355 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand 10 states. [2020-11-29 18:47:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:30,626 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2020-11-29 18:47:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:47:30,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-29 18:47:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:30,628 INFO L225 Difference]: With dead ends: 59 [2020-11-29 18:47:30,628 INFO L226 Difference]: Without dead ends: 59 [2020-11-29 18:47:30,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-11-29 18:47:30,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-29 18:47:30,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-29 18:47:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-29 18:47:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-11-29 18:47:30,634 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 22 [2020-11-29 18:47:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:30,635 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-11-29 18:47:30,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 18:47:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-11-29 18:47:30,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 18:47:30,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:30,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:30,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-29 18:47:30,850 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:30,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:30,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1753462742, now seen corresponding path program 1 times [2020-11-29 18:47:30,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:30,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193397408] [2020-11-29 18:47:30,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:30,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:47:31,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:31,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:47:31,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193397408] [2020-11-29 18:47:31,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:31,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 18:47:31,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572634145] [2020-11-29 18:47:31,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:47:31,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:31,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:47:31,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:47:31,105 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 5 states. [2020-11-29 18:47:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:31,180 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2020-11-29 18:47:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:47:31,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-29 18:47:31,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:31,182 INFO L225 Difference]: With dead ends: 59 [2020-11-29 18:47:31,183 INFO L226 Difference]: Without dead ends: 59 [2020-11-29 18:47:31,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:47:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-29 18:47:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-29 18:47:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-29 18:47:31,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2020-11-29 18:47:31,189 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 27 [2020-11-29 18:47:31,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:31,189 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2020-11-29 18:47:31,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:47:31,189 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2020-11-29 18:47:31,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 18:47:31,190 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:31,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:31,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-29 18:47:31,398 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:31,398 INFO L82 PathProgramCache]: Analyzing trace with hash 64890135, now seen corresponding path program 1 times [2020-11-29 18:47:31,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:31,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614338616] [2020-11-29 18:47:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:31,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:47:31,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:47:31,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:47:31,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614338616] [2020-11-29 18:47:31,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:47:31,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-11-29 18:47:31,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064105729] [2020-11-29 18:47:31,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 18:47:31,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:31,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:47:31,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:47:31,697 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2020-11-29 18:47:31,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:31,851 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2020-11-29 18:47:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:47:31,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-11-29 18:47:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:31,853 INFO L225 Difference]: With dead ends: 65 [2020-11-29 18:47:31,853 INFO L226 Difference]: Without dead ends: 59 [2020-11-29 18:47:31,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:47:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-29 18:47:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-11-29 18:47:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-29 18:47:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-11-29 18:47:31,861 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 29 [2020-11-29 18:47:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:31,862 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-11-29 18:47:31,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 18:47:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-11-29 18:47:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 18:47:31,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:31,863 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:32,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-11-29 18:47:32,074 INFO L429 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:32,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1742564328, now seen corresponding path program 1 times [2020-11-29 18:47:32,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:32,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037725590] [2020-11-29 18:47:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:47:32,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:47:32,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:47:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:47:32,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:47:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:47:32,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037725590] [2020-11-29 18:47:32,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:47:32,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-29 18:47:32,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421368924] [2020-11-29 18:47:32,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:47:32,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:47:32,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:47:32,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:47:32,309 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-11-29 18:47:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:47:32,354 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2020-11-29 18:47:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:47:32,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-29 18:47:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:47:32,355 INFO L225 Difference]: With dead ends: 58 [2020-11-29 18:47:32,355 INFO L226 Difference]: Without dead ends: 58 [2020-11-29 18:47:32,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:47:32,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-11-29 18:47:32,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-11-29 18:47:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 18:47:32,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-11-29 18:47:32,360 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 29 [2020-11-29 18:47:32,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:47:32,360 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-11-29 18:47:32,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:47:32,360 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-11-29 18:47:32,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 18:47:32,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:47:32,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:47:32,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-29 18:47:32,569 INFO L429 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr3ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr4ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr3ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr2ASSERT_VIOLATIONMEMORY_FREE, expandArrayErr1REQUIRES_VIOLATION, expandArrayErr0REQUIRES_VIOLATION]=== [2020-11-29 18:47:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:47:32,570 INFO L82 PathProgramCache]: Analyzing trace with hash 188620705, now seen corresponding path program 1 times [2020-11-29 18:47:32,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:47:32,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634216951] [2020-11-29 18:47:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-11-29 18:47:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:32,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:47:32,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:47:32,848 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 18:47:32,848 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:47:33,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-11-29 18:47:33,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:47:33 BoogieIcfgContainer [2020-11-29 18:47:33,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:47:33,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:47:33,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:47:33,107 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:47:33,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:20" (3/4) ... [2020-11-29 18:47:33,110 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:47:33,173 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8589f369-a748-4f71-8c07-05788cdd9236/bin/uautomizer/witness.graphml [2020-11-29 18:47:33,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:47:33,175 INFO L168 Benchmark]: Toolchain (without parser) took 13946.98 ms. Allocated memory was 60.8 MB in the beginning and 134.2 MB in the end (delta: 73.4 MB). Free memory was 40.9 MB in the beginning and 60.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 53.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:33,175 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 43.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:47:33,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.83 ms. Allocated memory is still 60.8 MB. Free memory was 40.7 MB in the beginning and 30.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:33,177 INFO L168 Benchmark]: Boogie Preprocessor took 112.73 ms. Allocated memory is still 60.8 MB. Free memory was 30.3 MB in the beginning and 27.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:33,177 INFO L168 Benchmark]: RCFGBuilder took 814.62 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 27.5 MB in the beginning and 37.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:33,178 INFO L168 Benchmark]: TraceAbstraction took 12260.51 ms. Allocated memory was 75.5 MB in the beginning and 134.2 MB in the end (delta: 58.7 MB). Free memory was 37.6 MB in the beginning and 63.9 MB in the end (delta: -26.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:33,179 INFO L168 Benchmark]: Witness Printer took 66.28 ms. Allocated memory is still 134.2 MB. Free memory was 63.9 MB in the beginning and 60.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:47:33,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 43.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 676.83 ms. Allocated memory is still 60.8 MB. Free memory was 40.7 MB in the beginning and 30.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.73 ms. Allocated memory is still 60.8 MB. Free memory was 30.3 MB in the beginning and 27.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 814.62 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 27.5 MB in the beginning and 37.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12260.51 ms. Allocated memory was 75.5 MB in the beginning and 134.2 MB in the end (delta: 58.7 MB). Free memory was 37.6 MB in the beginning and 63.9 MB in the end (delta: -26.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Witness Printer took 66.28 ms. Allocated memory is still 134.2 MB. Free memory was 63.9 MB in the beginning and 60.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [\old(i)=5, \old(ind)=6, \old(newsize)=7, \old(num)=9, i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=0, num=1] [L537] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={1:0}] [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, expandArray(a)={0:0}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, malloc(sizeof(int))={1:0}, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 63 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.1s, OverallIterations: 15, TraceHistogramMax: 2, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 468 SDtfs, 429 SDslu, 920 SDs, 0 SdLazy, 586 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 528 GetRequests, 452 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 92 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 496 ConstructedInterpolants, 27 QuantifiedInterpolants, 29688 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1347 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 28 InterpolantComputations, 26 PerfectInterpolantSequences, 40/44 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...