./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 cf7af2f20e563d03f4a81a8dac054ded849cb34c ............................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 cf7af2f20e563d03f4a81a8dac054ded849cb34c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:27:26,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:27:26,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:27:26,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:27:26,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:27:26,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:27:26,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:27:26,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:27:26,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:27:26,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:27:26,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:27:26,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:27:26,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:27:26,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:27:26,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:27:26,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:27:26,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:27:26,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:27:26,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:27:26,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:27:26,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:27:26,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:27:26,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:27:26,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:27:26,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:27:26,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:27:26,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:27:26,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:27:26,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:27:26,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:27:26,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:27:26,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:27:26,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:27:26,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:27:26,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:27:26,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:27:26,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:27:26,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:27:26,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:27:26,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:27:26,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:27:26,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 18:27:26,208 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:27:26,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:27:26,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:27:26,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:27:26,209 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:27:26,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:27:26,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:27:26,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:27:26,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:27:26,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:27:26,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:27:26,210 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 18:27:26,211 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 18:27:26,211 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 18:27:26,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:27:26,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 18:27:26,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:27:26,211 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:27:26,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:27:26,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:27:26,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:27:26,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:27:26,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:27:26,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:27:26,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:27:26,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:27:26,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:27:26,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:27:26,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-12-07 18:27:26,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:27:26,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:27:26,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:27:26,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:27:26,332 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:27:26,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 18:27:26,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/c7fa32768/7206e8e8eb164a0e94e281c6bd0c9c8a/FLAG18ab1d170 [2019-12-07 18:27:26,874 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:27:26,874 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 18:27:26,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/c7fa32768/7206e8e8eb164a0e94e281c6bd0c9c8a/FLAG18ab1d170 [2019-12-07 18:27:27,354 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/c7fa32768/7206e8e8eb164a0e94e281c6bd0c9c8a [2019-12-07 18:27:27,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:27:27,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 18:27:27,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:27,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:27:27,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:27:27,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:27" (1/1) ... [2019-12-07 18:27:27,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188f7623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:27, skipping insertion in model container [2019-12-07 18:27:27,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:27" (1/1) ... [2019-12-07 18:27:27,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:27:27,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:27:27,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:27,591 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) [2019-12-07 18:27:27,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4778d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:27, skipping insertion in model container [2019-12-07 18:27:27,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:27,592 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-12-07 18:27:27,594 INFO L168 Benchmark]: Toolchain (without parser) took 235.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:27:27,594 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 962.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:27:27,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:27:27,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 962.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 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 0.1.25-f470102 [2019-12-07 18:27:28,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:27:28,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:27:28,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:27:28,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:27:28,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:27:28,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:27:28,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:27:28,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:27:28,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:27:28,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:27:28,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:27:28,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:27:28,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:27:28,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:27:28,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:27:28,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:27:28,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:27:28,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:27:28,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:27:28,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:27:28,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:27:28,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:27:28,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:27:28,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:27:28,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:27:28,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:27:28,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:27:28,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:27:28,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:27:28,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:27:28,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:27:28,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:27:28,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:27:28,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:27:28,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:27:28,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:27:28,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:27:28,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:27:28,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:27:28,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:27:28,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 18:27:28,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:27:28,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:27:28,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:27:28,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:27:28,777 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:27:28,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:27:28,777 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:27:28,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:27:28,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:27:28,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:27:28,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:27:28,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:27:28,780 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 -> cf7af2f20e563d03f4a81a8dac054ded849cb34c [2019-12-07 18:27:28,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:27:28,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:27:28,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:27:28,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:27:28,966 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:27:28,966 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 18:27:29,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/f51021a67/38a6b3cec86c4c45878491d3a89dbd75/FLAG16cd8edb1 [2019-12-07 18:27:29,508 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:27:29,508 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-2.i [2019-12-07 18:27:29,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/f51021a67/38a6b3cec86c4c45878491d3a89dbd75/FLAG16cd8edb1 [2019-12-07 18:27:29,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/bin/uautomizer/data/f51021a67/38a6b3cec86c4c45878491d3a89dbd75 [2019-12-07 18:27:29,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:27:29,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 18:27:29,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:29,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:27:29,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:27:29,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:29" (1/1) ... [2019-12-07 18:27:29,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416b65d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:29, skipping insertion in model container [2019-12-07 18:27:29,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:29" (1/1) ... [2019-12-07 18:27:30,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:27:30,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:27:30,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:30,227 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 18:27:30,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:27:30,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:30,254 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:27:30,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:30,308 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:27:30,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30 WrapperNode [2019-12-07 18:27:30,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:30,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:27:30,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:27:30,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:27:30,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... [2019-12-07 18:27:30,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:27:30,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:27:30,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:27:30,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:27:30,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:27:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2019-12-07 18:27:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 18:27:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 18:27:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 18:27:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 18:27:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 18:27:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 18:27:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 18:27:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 18:27:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 18:27:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 18:27:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 18:27:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 18:27:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 18:27:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:27:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 18:27:30,580 INFO L691 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-12-07 18:27:30,668 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:27:30,668 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2019-12-07 18:27:30,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:30 BoogieIcfgContainer [2019-12-07 18:27:30,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:27:30,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:27:30,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:27:30,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:27:30,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:27:29" (1/3) ... [2019-12-07 18:27:30,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21747983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:27:30, skipping insertion in model container [2019-12-07 18:27:30,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:30" (2/3) ... [2019-12-07 18:27:30,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21747983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:27:30, skipping insertion in model container [2019-12-07 18:27:30,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:30" (3/3) ... [2019-12-07 18:27:30,674 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_shallow_copy-2.i [2019-12-07 18:27:30,680 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:27:30,684 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-12-07 18:27:30,692 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-12-07 18:27:30,704 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:27:30,704 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 18:27:30,704 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:27:30,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:27:30,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:27:30,704 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:27:30,704 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:27:30,704 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:27:30,714 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-12-07 18:27:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:27:30,719 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:27:30,720 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:27:30,720 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:27:30,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:27:30,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1580649199, now seen corresponding path program 1 times [2019-12-07 18:27:30,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:27:30,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086005279] [2019-12-07 18:27:30,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:27:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:27:30,836 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:27:30,841 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:27:30,891 INFO L377 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 [2019-12-07 18:27:30,891 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:27:30,898 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:30,898 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:27:30,899 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 18:27:30,987 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:30,988 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 14 treesize of output 30 [2019-12-07 18:27:30,991 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:27:31,006 INFO L614 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-12-07 18:27:31,007 INFO L534 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. [2019-12-07 18:27:31,007 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2019-12-07 18:27:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:27:31,020 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:27:31,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:27:31,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086005279] [2019-12-07 18:27:31,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:27:31,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2019-12-07 18:27:31,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412691578] [2019-12-07 18:27:31,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:27:31,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:27:31,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:27:31,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:27:31,164 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 9 states. [2019-12-07 18:27:31,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:27:31,528 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2019-12-07 18:27:31,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:27:31,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-12-07 18:27:31,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:27:31,534 INFO L225 Difference]: With dead ends: 38 [2019-12-07 18:27:31,534 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 18:27:31,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-12-07 18:27:31,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 18:27:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-12-07 18:27:31,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:27:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-12-07 18:27:31,563 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 19 [2019-12-07 18:27:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:27:31,564 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-12-07 18:27:31,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:27:31,565 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-12-07 18:27:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:27:31,566 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:27:31,566 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:27:31,767 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:27:31,768 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:27:31,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:27:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1580649198, now seen corresponding path program 1 times [2019-12-07 18:27:31,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:27:31,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72354880] [2019-12-07 18:27:31,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:27:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:27:31,878 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2019-12-07 18:27:31,880 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:27:31,887 INFO L377 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 [2019-12-07 18:27:31,887 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:27:31,893 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:31,896 INFO L377 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 [2019-12-07 18:27:31,896 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:27:31,902 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:31,902 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:27:31,903 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-12-07 18:27:32,003 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:32,003 INFO L377 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 [2019-12-07 18:27:32,004 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:27:32,015 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:32,020 INFO L377 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 [2019-12-07 18:27:32,020 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:27:32,029 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:27:32,030 INFO L534 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. [2019-12-07 18:27:32,031 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:18 [2019-12-07 18:27:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:27:32,064 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:27:32,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:27:32,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:27:32,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:27:32,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:27:32,894 WARN L192 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2019-12-07 18:27:32,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:27:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:27:35,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72354880] [2019-12-07 18:27:35,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:27:35,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-12-07 18:27:35,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528295919] [2019-12-07 18:27:35,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-12-07 18:27:35,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:27:35,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-12-07 18:27:35,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:27:35,668 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 16 states. [2019-12-07 18:27:45,702 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-12-07 18:27:49,840 WARN L192 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-12-07 18:27:52,570 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 18:27:55,879 WARN L192 SmtUtils]: Spent 2.83 s on a formula simplification that was a NOOP. DAG size: 49 [2019-12-07 18:27:59,995 WARN L192 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-12-07 18:28:03,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:03,214 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-12-07 18:28:03,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:28:03,215 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2019-12-07 18:28:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:03,216 INFO L225 Difference]: With dead ends: 29 [2019-12-07 18:28:03,216 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 18:28:03,217 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=85, Invalid=376, Unknown=1, NotChecked=0, Total=462 [2019-12-07 18:28:03,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 18:28:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 18:28:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 18:28:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-12-07 18:28:03,221 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 19 [2019-12-07 18:28:03,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:03,221 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2019-12-07 18:28:03,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-12-07 18:28:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-12-07 18:28:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 18:28:03,222 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:03,222 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:03,422 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:28:03,423 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:28:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:03,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1414543091, now seen corresponding path program 1 times [2019-12-07 18:28:03,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:03,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604524218] [2019-12-07 18:28:03,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:28:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:03,559 INFO L264 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:28:03,560 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:03,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:03,595 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:03,640 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:28:03,647 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2019-12-07 18:28:03,647 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-07 18:28:03,660 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:03,661 INFO L534 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. [2019-12-07 18:28:03,661 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:12 [2019-12-07 18:28:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:03,844 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604524218] [2019-12-07 18:28:03,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:28:03,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-12-07 18:28:03,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271664937] [2019-12-07 18:28:03,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:28:03,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:03,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:28:03,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:28:03,845 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 12 states. [2019-12-07 18:28:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:04,050 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-12-07 18:28:04,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:28:04,051 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2019-12-07 18:28:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:04,052 INFO L225 Difference]: With dead ends: 27 [2019-12-07 18:28:04,052 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 18:28:04,052 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:28:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 18:28:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 18:28:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:28:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-12-07 18:28:04,055 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 21 [2019-12-07 18:28:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:04,055 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-12-07 18:28:04,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:28:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-12-07 18:28:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:28:04,056 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:04,056 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:04,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:28:04,257 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:28:04,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:04,258 INFO L82 PathProgramCache]: Analyzing trace with hash 901162851, now seen corresponding path program 1 times [2019-12-07 18:28:04,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:04,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759040740] [2019-12-07 18:28:04,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:28:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:04,373 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:28:04,375 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:04,379 INFO L377 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 [2019-12-07 18:28:04,379 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,381 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,381 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,381 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 18:28:04,398 INFO L377 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 [2019-12-07 18:28:04,398 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,404 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,404 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,404 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:9 [2019-12-07 18:28:04,415 INFO L377 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 17 treesize of output 9 [2019-12-07 18:28:04,415 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,417 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,417 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,417 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2019-12-07 18:28:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:04,425 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:04,462 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759040740] [2019-12-07 18:28:04,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:04,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-12-07 18:28:04,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323687209] [2019-12-07 18:28:04,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 18:28:04,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:04,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 18:28:04,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:28:04,463 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 7 states. [2019-12-07 18:28:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:04,572 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-12-07 18:28:04,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:28:04,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-07 18:28:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:04,573 INFO L225 Difference]: With dead ends: 26 [2019-12-07 18:28:04,573 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 18:28:04,573 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:28:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 18:28:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 18:28:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 18:28:04,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-12-07 18:28:04,576 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 22 [2019-12-07 18:28:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:04,576 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-12-07 18:28:04,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 18:28:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-12-07 18:28:04,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:28:04,576 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:04,577 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:04,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:28:04,778 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:28:04,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:04,779 INFO L82 PathProgramCache]: Analyzing trace with hash 901162852, now seen corresponding path program 1 times [2019-12-07 18:28:04,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:04,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181135441] [2019-12-07 18:28:04,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:28:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:04,893 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 18:28:04,894 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:04,898 INFO L377 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 [2019-12-07 18:28:04,899 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,903 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,903 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,903 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 18:28:04,928 INFO L377 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 [2019-12-07 18:28:04,928 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,939 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,941 INFO L377 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 [2019-12-07 18:28:04,942 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,948 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,949 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,949 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2019-12-07 18:28:04,966 INFO L377 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 17 treesize of output 9 [2019-12-07 18:28:04,966 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,975 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,977 INFO L377 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 [2019-12-07 18:28:04,977 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,982 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 18:28:04,982 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 18:28:04,983 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:11 [2019-12-07 18:28:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:04,998 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:05,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181135441] [2019-12-07 18:28:05,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:05,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 18:28:05,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764857113] [2019-12-07 18:28:05,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:28:05,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:05,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:28:05,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:28:05,301 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 12 states. [2019-12-07 18:28:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:05,564 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-12-07 18:28:05,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:28:05,565 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-07 18:28:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:05,565 INFO L225 Difference]: With dead ends: 25 [2019-12-07 18:28:05,565 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 18:28:05,566 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2019-12-07 18:28:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 18:28:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 18:28:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:28:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-12-07 18:28:05,568 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2019-12-07 18:28:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:05,569 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-12-07 18:28:05,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:28:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-12-07 18:28:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 18:28:05,569 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:05,569 INFO L410 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] [2019-12-07 18:28:05,770 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 18:28:05,771 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:28:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:05,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1584820282, now seen corresponding path program 1 times [2019-12-07 18:28:05,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:05,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144107302] [2019-12-07 18:28:05,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:28:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:05,867 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:28:05,869 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:28:05,959 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:28:06,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144107302] [2019-12-07 18:28:06,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:28:06,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2019-12-07 18:28:06,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269154460] [2019-12-07 18:28:06,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:28:06,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:06,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:28:06,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:28:06,069 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 12 states. [2019-12-07 18:28:06,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:06,211 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-12-07 18:28:06,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:28:06,211 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2019-12-07 18:28:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:06,212 INFO L225 Difference]: With dead ends: 25 [2019-12-07 18:28:06,212 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 18:28:06,212 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:28:06,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 18:28:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-12-07 18:28:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 18:28:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-12-07 18:28:06,215 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 26 [2019-12-07 18:28:06,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:06,215 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-12-07 18:28:06,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:28:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-12-07 18:28:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 18:28:06,216 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:06,216 INFO L410 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] [2019-12-07 18:28:06,416 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 18:28:06,417 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-12-07 18:28:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:06,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1701102057, now seen corresponding path program 1 times [2019-12-07 18:28:06,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:06,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522070868] [2019-12-07 18:28:06,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3b85371-c138-448f-b876-e98d1e3272e5/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 [2019-12-07 18:28:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:28:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:28:06,593 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 18:28:06,593 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:28:06,794 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 18:28:06,824 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 18:28:06,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:28:06 BoogieIcfgContainer [2019-12-07 18:28:06,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:28:06,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:28:06,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:28:06,844 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:28:06,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:30" (3/4) ... [2019-12-07 18:28:06,847 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:28:06,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:28:06,849 INFO L168 Benchmark]: Toolchain (without parser) took 36858.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 947.0 MB in the beginning and 824.6 MB in the end (delta: 122.4 MB). Peak memory consumption was 304.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:06,849 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:28:06,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -134.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:06,850 INFO L168 Benchmark]: Boogie Preprocessor took 38.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:28:06,850 INFO L168 Benchmark]: RCFGBuilder took 320.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:06,851 INFO L168 Benchmark]: TraceAbstraction took 36173.69 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.0 GB in the beginning and 824.6 MB in the end (delta: 212.0 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:06,851 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 1.2 GB. Free memory is still 824.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:28:06,854 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -134.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.56 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 320.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36173.69 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.0 GB in the beginning and 824.6 MB in the end (delta: 212.0 MB). Peak memory consumption was 287.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.93 ms. Allocated memory is still 1.2 GB. Free memory is still 824.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 568]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 568. Possible FailurePath: [L569] CALL, EXPR alloc_node() [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={1:0}, temp={1:0}] [L563] COND FALSE !(((void *)0) == temp) VAL [malloc(sizeof(struct node))={1:0}, temp={1:0}] [L566] return temp; VAL [\result={1:0}, malloc(sizeof(struct node))={1:0}, temp={1:0}] [L569] RET, EXPR alloc_node() VAL [alloc_node()={1:0}] [L569] struct node* s = alloc_node(); [L570] CALL, EXPR alloc_node() [L562] struct node* temp = (struct node*) malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={2:0}, temp={2:0}] [L563] COND FALSE !(((void *)0) == temp) VAL [malloc(sizeof(struct node))={2:0}, temp={2:0}] [L566] return temp; VAL [\result={2:0}, malloc(sizeof(struct node))={2:0}, temp={2:0}] [L570] RET, EXPR alloc_node() VAL [alloc_node()={2:0}, s={1:0}] [L570] s->next = alloc_node() VAL [alloc_node()={2:0}, s={1:0}] [L571] EXPR s->next VAL [s={1:0}, s->next={2:0}] [L571] *s = *(s->next) [L572] free(s) VAL [s={1:0}] [L572] free(s) VAL [s={1:0}] [L572] free(s) [L573] return 0; VAL [\result=0, s={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 54 locations, 12 error locations. Result: UNSAFE, OverallTime: 36.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 28.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 144 SDslu, 401 SDs, 0 SdLazy, 656 SolverSat, 46 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 191 SyntacticMatches, 5 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 22.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 246 ConstructedInterpolants, 30 QuantifiedInterpolants, 30712 SizeOfPredicates, 39 NumberOfNonLiveVariables, 468 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 28/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...