./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-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_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 86b203c3a804c103d90401bd32cfcff28939b920 .................................................................................................................................. 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_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 86b203c3a804c103d90401bd32cfcff28939b920 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:07:39,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:07:39,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:07:39,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:07:39,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:07:39,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:07:39,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:07:39,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:07:39,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:07:39,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:07:39,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:07:39,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:07:39,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:07:39,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:07:39,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:07:39,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:07:39,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:07:39,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:07:39,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:07:39,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:07:39,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:07:39,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:07:39,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:07:39,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:07:39,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:07:39,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:07:39,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:07:39,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:07:39,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:07:39,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:07:39,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:07:39,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:07:39,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:07:39,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:07:39,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:07:39,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:07:39,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:07:39,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:07:39,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:07:39,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:07:39,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:07:39,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 22:07:39,242 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:07:39,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:07:39,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:07:39,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:07:39,244 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:07:39,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:07:39,245 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:07:39,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:07:39,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:07:39,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:07:39,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:07:39,246 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 22:07:39,246 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 22:07:39,247 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 22:07:39,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:07:39,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 22:07:39,248 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:07:39,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:07:39,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:07:39,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:07:39,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:07:39,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:07:39,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:07:39,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:07:39,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:07:39,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:07:39,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:07:39,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:07:39,251 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_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b203c3a804c103d90401bd32cfcff28939b920 [2020-11-29 22:07:39,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:07:39,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:07:39,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:07:39,641 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:07:39,643 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:07:39,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-11-29 22:07:39,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/deb1a3dca/f3c461cf1c2347efa86cb7c479c8719c/FLAG0f2f9a188 [2020-11-29 22:07:40,401 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:07:40,402 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-11-29 22:07:40,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/deb1a3dca/f3c461cf1c2347efa86cb7c479c8719c/FLAG0f2f9a188 [2020-11-29 22:07:40,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/deb1a3dca/f3c461cf1c2347efa86cb7c479c8719c [2020-11-29 22:07:40,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:07:40,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 22:07:40,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:07:40,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:07:40,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:07:40,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:07:40" (1/1) ... [2020-11-29 22:07:40,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad7197f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:40, skipping insertion in model container [2020-11-29 22:07:40,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:07:40" (1/1) ... [2020-11-29 22:07:40,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:07:40,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:07:41,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:07:41,120 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 22:07:41,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b09602d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:41, skipping insertion in model container [2020-11-29 22:07:41,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:07:41,122 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-29 22:07:41,126 INFO L168 Benchmark]: Toolchain (without parser) took 437.83 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 52.8 MB in the beginning and 82.5 MB in the end (delta: -29.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:41,127 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:07:41,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.37 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 82.5 MB in the end (delta: -29.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:07:41,133 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 86.0 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 434.37 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 82.5 MB in the end (delta: -29.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: 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 22:07:43,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:07:43,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:07:43,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:07:43,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:07:43,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:07:43,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:07:43,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:07:43,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:07:43,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:07:43,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:07:43,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:07:43,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:07:43,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:07:43,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:07:43,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:07:43,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:07:43,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:07:43,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:07:43,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:07:43,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:07:43,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:07:43,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:07:43,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:07:43,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:07:43,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:07:43,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:07:43,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:07:43,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:07:43,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:07:43,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:07:43,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:07:43,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:07:43,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:07:43,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:07:43,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:07:43,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:07:43,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:07:43,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:07:43,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:07:43,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:07:43,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 22:07:43,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:07:43,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:07:43,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:07:43,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:07:43,711 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:07:43,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:07:43,711 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:07:43,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:07:43,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:07:43,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:07:43,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:07:43,714 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 22:07:43,714 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 22:07:43,714 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 22:07:43,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:07:43,714 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 22:07:43,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:07:43,715 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:07:43,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:07:43,715 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:07:43,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:07:43,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:07:43,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:07:43,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:07:43,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:07:43,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:07:43,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:07:43,717 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:07:43,717 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:07:43,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:07:43,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:07:43,718 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_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b203c3a804c103d90401bd32cfcff28939b920 [2020-11-29 22:07:44,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:07:44,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:07:44,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:07:44,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:07:44,168 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:07:44,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-11-29 22:07:44,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/e9b57feda/c381e32d92634e5f8322570b20a63abf/FLAG1e2002e0b [2020-11-29 22:07:44,885 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:07:44,892 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-11-29 22:07:44,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/e9b57feda/c381e32d92634e5f8322570b20a63abf/FLAG1e2002e0b [2020-11-29 22:07:45,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/data/e9b57feda/c381e32d92634e5f8322570b20a63abf [2020-11-29 22:07:45,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:07:45,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 22:07:45,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:07:45,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:07:45,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:07:45,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b1b005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45, skipping insertion in model container [2020-11-29 22:07:45,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:07:45,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:07:45,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:07:45,543 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-29 22:07:45,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:07:45,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:07:45,619 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:07:45,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:07:45,716 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:07:45,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45 WrapperNode [2020-11-29 22:07:45,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:07:45,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:07:45,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:07:45,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:07:45,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... [2020-11-29 22:07:45,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:07:45,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:07:45,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:07:45,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:07:45,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:07:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 22:07:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:07:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 22:07:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-29 22:07:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-29 22:07:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-11-29 22:07:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2020-11-29 22:07:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 22:07:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-29 22:07:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-29 22:07:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 22:07:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 22:07:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 22:07:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 22:07:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 22:07:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 22:07:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 22:07:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 22:07:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 22:07:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 22:07:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 22:07:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 22:07:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 22:07:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 22:07:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 22:07:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 22:07:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 22:07:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 22:07:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 22:07:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 22:07:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 22:07:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 22:07:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 22:07:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 22:07:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 22:07:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 22:07:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 22:07:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 22:07:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 22:07:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 22:07:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 22:07:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 22:07:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 22:07:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 22:07:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 22:07:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 22:07:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 22:07:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 22:07:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 22:07:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 22:07:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 22:07:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 22:07:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 22:07:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 22:07:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 22:07:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 22:07:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 22:07:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 22:07:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 22:07:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 22:07:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 22:07:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 22:07:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 22:07:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 22:07:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-29 22:07:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 22:07:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 22:07:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 22:07:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 22:07:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 22:07:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 22:07:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 22:07:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 22:07:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 22:07:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 22:07:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 22:07:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 22:07:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 22:07:45,949 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 22:07:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 22:07:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 22:07:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 22:07:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 22:07:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 22:07:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 22:07:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 22:07:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 22:07:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 22:07:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 22:07:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 22:07:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 22:07:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 22:07:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 22:07:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 22:07:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 22:07:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 22:07:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 22:07:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 22:07:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 22:07:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 22:07:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 22:07:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 22:07:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 22:07:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 22:07:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 22:07:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 22:07:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 22:07:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 22:07:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 22:07:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 22:07:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 22:07:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 22:07:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 22:07:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-11-29 22:07:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2020-11-29 22:07:45,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 22:07:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 22:07:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 22:07:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 22:07:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:07:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 22:07:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:07:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 22:07:46,622 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-11-29 22:07:46,817 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:07:46,817 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-29 22:07:46,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:07:46 BoogieIcfgContainer [2020-11-29 22:07:46,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:07:46,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:07:46,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:07:46,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:07:46,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:07:45" (1/3) ... [2020-11-29 22:07:46,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f432ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:07:46, skipping insertion in model container [2020-11-29 22:07:46,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:07:45" (2/3) ... [2020-11-29 22:07:46,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f432ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:07:46, skipping insertion in model container [2020-11-29 22:07:46,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:07:46" (3/3) ... [2020-11-29 22:07:46,828 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-1.i [2020-11-29 22:07:46,840 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:07:46,845 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2020-11-29 22:07:46,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2020-11-29 22:07:46,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:07:46,879 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 22:07:46,879 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:07:46,879 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:07:46,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:07:46,880 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:07:46,880 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:07:46,880 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:07:46,896 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-11-29 22:07:46,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 22:07:46,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:07:46,905 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:07:46,906 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:07:46,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:07:46,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1901459912, now seen corresponding path program 1 times [2020-11-29 22:07:46,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:07:46,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297122559] [2020-11-29 22:07:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:07:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:07:47,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 22:07:47,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:07:47,290 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 22:07:47,290 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:07:47,298 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:07:47,298 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:07:47,299 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 22:07:47,561 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:07:47,561 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-11-29 22:07:47,566 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:07:47,567 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:07:47,581 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:07:47,620 INFO L625 ElimStorePlain]: treesize reduction 16, result has 51.5 percent of original size [2020-11-29 22:07:47,622 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 22:07:47,622 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2020-11-29 22:07:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:07:47,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:07:58,370 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_alloc_node_#t~malloc2.base_5| (_ BitVec 32)) (v_main_~s~0.base_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_alloc_node_#t~malloc2.base_5|))) (exists ((|v_alloc_node_#t~malloc2.base_4| (_ BitVec 32))) (and (not (= (_ bv1 1) (select (store |c_old(#valid)| |v_alloc_node_#t~malloc2.base_4| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_2))) (= (select |c_old(#valid)| |v_alloc_node_#t~malloc2.base_4|) (_ bv0 1)))) (= (bvadd (select (store |c_#valid| |v_alloc_node_#t~malloc2.base_5| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_2) (_ bv1 1)) (_ bv0 1)))) is different from false [2020-11-29 22:08:05,018 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-11-29 22:08:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:08:23,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297122559] [2020-11-29 22:08:23,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:08:23,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-11-29 22:08:23,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120396098] [2020-11-29 22:08:23,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 22:08:23,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:08:23,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 22:08:23,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=141, Unknown=11, NotChecked=24, Total=210 [2020-11-29 22:08:23,189 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 15 states. [2020-11-29 22:08:40,795 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_alloc_node_#t~malloc2.base_5| (_ BitVec 32)) (v_main_~s~0.base_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_alloc_node_#t~malloc2.base_5|))) (exists ((|v_alloc_node_#t~malloc2.base_4| (_ BitVec 32))) (and (not (= (_ bv1 1) (select (store |c_old(#valid)| |v_alloc_node_#t~malloc2.base_4| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_2))) (= (select |c_old(#valid)| |v_alloc_node_#t~malloc2.base_4|) (_ bv0 1)))) (= (bvadd (select (store |c_#valid| |v_alloc_node_#t~malloc2.base_5| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_2) (_ bv1 1)) (_ bv0 1)))) (= |c_old(#valid)| |c_#valid|)) is different from false [2020-11-29 22:08:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:08:47,560 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-11-29 22:08:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 22:08:47,561 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 19 [2020-11-29 22:08:47,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:08:47,567 INFO L225 Difference]: With dead ends: 44 [2020-11-29 22:08:47,567 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 22:08:47,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=69, Invalid=269, Unknown=12, NotChecked=70, Total=420 [2020-11-29 22:08:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 22:08:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-11-29 22:08:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-29 22:08:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2020-11-29 22:08:47,600 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 19 [2020-11-29 22:08:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:08:47,601 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2020-11-29 22:08:47,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 22:08:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2020-11-29 22:08:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 22:08:47,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:08:47,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:08:47,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 22:08:47,816 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:08:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:08:47,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1901459911, now seen corresponding path program 1 times [2020-11-29 22:08:47,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:08:47,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326097847] [2020-11-29 22:08:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:08:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:08:47,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 22:08:47,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:08:48,001 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 22:08:48,001 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:08:48,136 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-11-29 22:08:48,137 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:08:48,168 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 22:08:48,169 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 22:08:48,185 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:08:48,185 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:08:48,186 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2020-11-29 22:08:48,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 22:08:48,378 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-11-29 22:08:48,379 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:08:48,397 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:08:48,411 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:08:48,412 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2020-11-29 22:08:48,414 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:08:48,419 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 22:08:48,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:08:48,436 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 22:08:48,436 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2020-11-29 22:08:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:08:48,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:08:48,608 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:08:51,413 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-29 22:08:51,418 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:08:51,421 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:08:51,422 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:08:51,429 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:08:51,438 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:09:02,661 WARN L193 SmtUtils]: Spent 8.43 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-29 22:09:02,691 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 22:09:04,766 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_main_~s~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (|v_alloc_node_#t~malloc2.base_13| (_ BitVec 32)) (v_main_~s~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_main_~s~0.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (exists ((v_prenex_1 (_ BitVec 32))) (and (not (bvule (bvadd v_main_~s~0.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_1 (_ bv4 32)) v_main_~s~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)))) (not (= (select |c_#valid| |v_alloc_node_#t~malloc2.base_13|) (_ bv0 1))) (not (bvule v_main_~s~0.offset_BEFORE_CALL_2 .cse0)) (bvule .cse0 (select (store |c_#length| |v_alloc_node_#t~malloc2.base_13| (_ bv4 32)) v_main_~s~0.base_BEFORE_CALL_4))))) (or (forall ((|v_alloc_node_#t~malloc2.base_13| (_ BitVec 32))) (not (= (select |c_#valid| |v_alloc_node_#t~malloc2.base_13|) (_ bv0 1)))) (exists ((|v_alloc_node_#t~malloc2.base_12| (_ BitVec 32))) (= (select |c_old(#valid)| |v_alloc_node_#t~malloc2.base_12|) (_ bv0 1))))) is different from true [2020-11-29 22:09:13,723 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 22:09:16,849 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 22:09:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:09:16,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326097847] [2020-11-29 22:09:16,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:09:16,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2020-11-29 22:09:16,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101624136] [2020-11-29 22:09:16,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 22:09:16,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:09:16,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 22:09:16,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=171, Unknown=6, NotChecked=26, Total=240 [2020-11-29 22:09:16,901 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 16 states. [2020-11-29 22:09:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:09:30,149 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2020-11-29 22:09:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:09:30,150 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-11-29 22:09:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:09:30,152 INFO L225 Difference]: With dead ends: 32 [2020-11-29 22:09:30,152 INFO L226 Difference]: Without dead ends: 32 [2020-11-29 22:09:30,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=71, Invalid=307, Unknown=6, NotChecked=36, Total=420 [2020-11-29 22:09:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-29 22:09:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-29 22:09:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-29 22:09:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-11-29 22:09:30,164 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 19 [2020-11-29 22:09:30,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:09:30,165 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-11-29 22:09:30,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 22:09:30,165 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-11-29 22:09:30,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:09:30,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:09:30,167 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:09:30,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 22:09:30,387 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:09:30,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:09:30,388 INFO L82 PathProgramCache]: Analyzing trace with hash 294926047, now seen corresponding path program 1 times [2020-11-29 22:09:30,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:09:30,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164697853] [2020-11-29 22:09:30,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:09:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:09:30,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 22:09:30,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:09:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:09:30,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:09:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:09:30,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164697853] [2020-11-29 22:09:30,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:09:30,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2020-11-29 22:09:30,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441896638] [2020-11-29 22:09:30,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:09:30,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:09:30,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:09:30,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:09:30,959 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 12 states. [2020-11-29 22:09:31,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:09:31,282 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2020-11-29 22:09:31,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:09:31,283 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2020-11-29 22:09:31,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:09:31,284 INFO L225 Difference]: With dead ends: 32 [2020-11-29 22:09:31,284 INFO L226 Difference]: Without dead ends: 32 [2020-11-29 22:09:31,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:09:31,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-29 22:09:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-11-29 22:09:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 22:09:31,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-11-29 22:09:31,289 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 27 [2020-11-29 22:09:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:09:31,290 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-11-29 22:09:31,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:09:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-11-29 22:09:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:09:31,290 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:09:31,290 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:09:31,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 22:09:31,491 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:09:31,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:09:31,492 INFO L82 PathProgramCache]: Analyzing trace with hash -43907359, now seen corresponding path program 1 times [2020-11-29 22:09:31,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:09:31,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478138742] [2020-11-29 22:09:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:09:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:09:31,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 22:09:31,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:09:31,668 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-29 22:09:31,668 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:31,671 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:31,671 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:31,671 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-29 22:09:31,708 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-11-29 22:09:31,708 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:31,711 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:31,711 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:31,711 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:7 [2020-11-29 22:09:31,718 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-29 22:09:31,719 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:31,733 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:31,734 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:31,734 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-11-29 22:09:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:09:31,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:09:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:09:31,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478138742] [2020-11-29 22:09:31,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:09:31,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2020-11-29 22:09:31,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050068098] [2020-11-29 22:09:31,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:09:31,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:09:31,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:09:31,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:09:31,853 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 10 states. [2020-11-29 22:09:32,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:09:32,044 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-11-29 22:09:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 22:09:32,046 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-11-29 22:09:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:09:32,047 INFO L225 Difference]: With dead ends: 30 [2020-11-29 22:09:32,047 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 22:09:32,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-11-29 22:09:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 22:09:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 22:09:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 22:09:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2020-11-29 22:09:32,053 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 29 [2020-11-29 22:09:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:09:32,053 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2020-11-29 22:09:32,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:09:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2020-11-29 22:09:32,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:09:32,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:09:32,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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 22:09:32,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 22:09:32,271 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:09:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:09:32,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1361128031, now seen corresponding path program 1 times [2020-11-29 22:09:32,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:09:32,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905391426] [2020-11-29 22:09:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:09:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:09:32,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 22:09:32,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:09:32,649 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-29 22:09:32,649 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:32,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:32,680 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 22:09:32,681 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:15 [2020-11-29 22:09:32,798 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2020-11-29 22:09:32,798 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:32,814 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:32,814 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 22:09:32,815 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:15 [2020-11-29 22:09:32,844 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-29 22:09:32,844 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:32,859 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:32,860 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 22:09:32,860 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:22, output treesize:11 [2020-11-29 22:09:32,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:09:32,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:09:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:09:33,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905391426] [2020-11-29 22:09:33,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:09:33,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2020-11-29 22:09:33,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969790821] [2020-11-29 22:09:33,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-29 22:09:33,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:09:33,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-29 22:09:33,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2020-11-29 22:09:33,242 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 18 states. [2020-11-29 22:09:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:09:34,032 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-11-29 22:09:34,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 22:09:34,033 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 30 [2020-11-29 22:09:34,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:09:34,034 INFO L225 Difference]: With dead ends: 30 [2020-11-29 22:09:34,034 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 22:09:34,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2020-11-29 22:09:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 22:09:34,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-11-29 22:09:34,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 22:09:34,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-11-29 22:09:34,038 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 30 [2020-11-29 22:09:34,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:09:34,038 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-11-29 22:09:34,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-29 22:09:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-11-29 22:09:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 22:09:34,039 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:09:34,043 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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 22:09:34,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 22:09:34,253 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:09:34,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:09:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash 754704099, now seen corresponding path program 1 times [2020-11-29 22:09:34,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:09:34,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629945626] [2020-11-29 22:09:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:09:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:09:34,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 22:09:34,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:09:34,424 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 22:09:34,424 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,427 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:34,427 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,427 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 22:09:34,539 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:34,540 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-11-29 22:09:34,541 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 22:09:34,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:09:34,546 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,563 INFO L625 ElimStorePlain]: treesize reduction 16, result has 51.5 percent of original size [2020-11-29 22:09:34,564 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,564 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:17 [2020-11-29 22:09:34,594 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 22:09:34,594 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,604 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:34,605 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,606 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:25 [2020-11-29 22:09:34,698 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2020-11-29 22:09:34,699 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,706 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:34,706 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,706 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:25 [2020-11-29 22:09:34,720 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-11-29 22:09:34,720 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,730 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:34,730 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,730 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:17 [2020-11-29 22:09:34,807 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2020-11-29 22:09:34,809 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:34,841 INFO L625 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2020-11-29 22:09:34,842 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 22:09:34,842 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:11 [2020-11-29 22:09:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:09:34,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:09:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:09:39,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629945626] [2020-11-29 22:09:39,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:09:39,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 23 [2020-11-29 22:09:39,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675525489] [2020-11-29 22:09:39,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 22:09:39,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:09:39,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 22:09:39,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=483, Unknown=2, NotChecked=0, Total=552 [2020-11-29 22:09:39,353 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 15 states. [2020-11-29 22:09:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:09:39,763 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-11-29 22:09:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 22:09:39,765 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2020-11-29 22:09:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:09:39,765 INFO L225 Difference]: With dead ends: 28 [2020-11-29 22:09:39,766 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 22:09:39,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=98, Invalid=656, Unknown=2, NotChecked=0, Total=756 [2020-11-29 22:09:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 22:09:39,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-29 22:09:39,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 22:09:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-11-29 22:09:39,770 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 31 [2020-11-29 22:09:39,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:09:39,770 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-11-29 22:09:39,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 22:09:39,770 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-11-29 22:09:39,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 22:09:39,771 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:09:39,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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 22:09:39,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 22:09:39,976 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr14ENSURES_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 22:09:39,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:09:39,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1920990692, now seen corresponding path program 1 times [2020-11-29 22:09:39,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:09:39,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801072165] [2020-11-29 22:09:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/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 22:09:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:09:40,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-29 22:09:40,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:09:40,120 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 22:09:40,120 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,122 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:40,122 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,122 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-29 22:09:40,248 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-11-29 22:09:40,248 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:40,263 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,263 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:36 [2020-11-29 22:09:40,330 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2020-11-29 22:09:40,331 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,342 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:40,343 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,343 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:36 [2020-11-29 22:09:40,353 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2020-11-29 22:09:40,353 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,362 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 22:09:40,362 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 22:09:40,362 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:28 [2020-11-29 22:09:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 22:09:42,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:09:50,609 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_3| (Array (_ BitVec 32) (_ BitVec 1))) (v_main_~s~0.base_BEFORE_CALL_10 (_ BitVec 32))) (or (exists ((|v_main_#t~ret4.base_23| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_3| (store (store (store |c_old(#valid)| |v_main_#t~ret4.base_23| (_ bv1 1)) v_main_~s~0.base_BEFORE_CALL_10 (_ bv0 1)) |v_main_#t~ret4.base_23| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_main_#t~ret4.base_23|)))) (= |v_old(#valid)_BEFORE_CALL_3| (store (store |c_#valid| v_main_~s~0.base_BEFORE_CALL_10 (_ bv0 1)) |c_alloc_node_#res.base| (_ bv0 1))))) is different from false [2020-11-29 22:09:53,372 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~ret3.base_26| (_ BitVec 32)) (|v_main_#t~ret4.base_23| (_ BitVec 32))) (let ((.cse0 (store |c_#valid| |v_main_#t~ret3.base_26| (_ bv1 1)))) (or (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~ret4.base_23| (_ bv1 1)) |v_main_#t~ret3.base_26| (_ bv0 1)) |v_main_#t~ret4.base_23| (_ bv0 1))) (not (= (_ bv0 1) (select |c_#valid| |v_main_#t~ret3.base_26|))) (not (= (select .cse0 |v_main_#t~ret4.base_23|) (_ bv0 1)))))) is different from false [2020-11-29 22:09:53,392 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~ret4.base_23| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_main_#t~ret3.base_26| (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| |v_main_#t~ret3.base_26| (_ bv1 1)))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store (store (store .cse0 v_prenex_3 (_ bv1 1)) |v_main_#t~ret3.base_26| (_ bv0 1)) v_prenex_3 (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_main_#t~ret3.base_26|)) (= (_ bv0 1) (select .cse0 v_prenex_3))))) (= |v_old(#valid)_BEFORE_CALL_4| (store (store (store |c_#valid| |v_main_#t~ret4.base_23| (_ bv1 1)) |c_alloc_node_#res.base| (_ bv0 1)) |v_main_#t~ret4.base_23| (_ bv0 1))) (not (= (select |c_#valid| |v_main_#t~ret4.base_23|) (_ bv0 1))))) is different from false [2020-11-29 22:09:53,417 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~ret4.base_23| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_main_#t~ret3.base_26| (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| |v_main_#t~ret3.base_26| (_ bv1 1)))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store (store (store .cse0 v_prenex_3 (_ bv1 1)) |v_main_#t~ret3.base_26| (_ bv0 1)) v_prenex_3 (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_main_#t~ret3.base_26|)) (= (_ bv0 1) (select .cse0 v_prenex_3))))) (not (= (select |c_#valid| |v_main_#t~ret4.base_23|) (_ bv0 1))) (= (store (store (store |c_#valid| |v_main_#t~ret4.base_23| (_ bv1 1)) c_alloc_node_~temp~0.base (_ bv0 1)) |v_main_#t~ret4.base_23| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|))) is different from false [2020-11-29 22:09:53,449 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~ret4.base_23| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1))) (v_alloc_node_~temp~0.base_57 (_ BitVec 32))) (let ((.cse1 (store |c_#valid| v_alloc_node_~temp~0.base_57 (_ bv1 1)))) (or (exists ((|v_main_#t~ret3.base_26| (_ BitVec 32)) (v_prenex_3 (_ BitVec 32))) (let ((.cse0 (store |c_old(#valid)| |v_main_#t~ret3.base_26| (_ bv1 1)))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store (store (store .cse0 v_prenex_3 (_ bv1 1)) |v_main_#t~ret3.base_26| (_ bv0 1)) v_prenex_3 (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_main_#t~ret3.base_26|)) (= (_ bv0 1) (select .cse0 v_prenex_3))))) (not (= (select |c_#valid| v_alloc_node_~temp~0.base_57) (_ bv0 1))) (not (= (select .cse1 |v_main_#t~ret4.base_23|) (_ bv0 1))) (= (store (store (store .cse1 |v_main_#t~ret4.base_23| (_ bv1 1)) v_alloc_node_~temp~0.base_57 (_ bv0 1)) |v_main_#t~ret4.base_23| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_4|)))) is different from false [2020-11-29 22:09:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2020-11-29 22:09:53,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801072165] [2020-11-29 22:09:53,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:09:53,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [17] total 30 [2020-11-29 22:09:53,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948275203] [2020-11-29 22:09:53,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 22:09:53,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:09:53,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 22:09:53,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=552, Unknown=40, NotChecked=260, Total=930 [2020-11-29 22:09:53,487 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 16 states. [2020-11-29 22:10:00,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:10:00,759 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-11-29 22:10:00,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 22:10:00,759 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 32 [2020-11-29 22:10:00,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:10:00,760 INFO L225 Difference]: With dead ends: 27 [2020-11-29 22:10:00,760 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:10:00,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=148, Invalid=1153, Unknown=51, NotChecked=370, Total=1722 [2020-11-29 22:10:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:10:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:10:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:10:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:10:00,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-11-29 22:10:00,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:10:00,762 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:10:00,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 22:10:00,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:10:00,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:10:00,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 22:10:00,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:10:00 BoogieIcfgContainer [2020-11-29 22:10:00,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:10:00,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:10:00,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:10:00,967 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:10:00,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:07:46" (3/4) ... [2020-11-29 22:10:00,970 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:10:00,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.setCurrentRoundingMode [2020-11-29 22:10:00,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-29 22:10:00,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2020-11-29 22:10:00,977 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-11-29 22:10:00,978 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-11-29 22:10:00,978 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-29 22:10:00,978 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_node [2020-11-29 22:10:00,986 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 22:10:00,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 22:10:00,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:10:00,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:10:01,020 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_91beeee4-8c8e-4184-96c1-a69d45fd7c76/bin/uautomizer/witness.graphml [2020-11-29 22:10:01,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:10:01,021 INFO L168 Benchmark]: Toolchain (without parser) took 135860.37 ms. Allocated memory was 56.6 MB in the beginning and 88.1 MB in the end (delta: 31.5 MB). Free memory was 34.2 MB in the beginning and 38.3 MB in the end (delta: -4.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:01,022 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:10:01,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.72 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 27.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:01,023 INFO L168 Benchmark]: Boogie Preprocessor took 97.13 ms. Allocated memory is still 56.6 MB. Free memory was 27.9 MB in the beginning and 25.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:01,023 INFO L168 Benchmark]: RCFGBuilder took 1001.37 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 25.2 MB in the beginning and 36.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:01,024 INFO L168 Benchmark]: TraceAbstraction took 134145.01 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 35.9 MB in the beginning and 41.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:01,024 INFO L168 Benchmark]: Witness Printer took 53.37 ms. Allocated memory is still 88.1 MB. Free memory was 41.1 MB in the beginning and 38.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:10:01,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 557.72 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 27.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.13 ms. Allocated memory is still 56.6 MB. Free memory was 27.9 MB in the beginning and 25.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1001.37 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 25.2 MB in the beginning and 36.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 134145.01 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 35.9 MB in the beginning and 41.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Witness Printer took 53.37 ms. Allocated memory is still 88.1 MB. Free memory was 41.1 MB in the beginning and 38.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 61 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 134.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 46.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 115 SDtfs, 203 SDslu, 579 SDs, 0 SdLazy, 1235 SolverSat, 68 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 41.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 251 SyntacticMatches, 5 SemanticMatches, 147 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 86.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 84.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 360 ConstructedInterpolants, 85 QuantifiedInterpolants, 96888 SizeOfPredicates, 48 NumberOfNonLiveVariables, 642 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 37/70 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 correct! Received shutdown request...