./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34250e9d8f469697cb8850c8aa9214fde887cb00 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34250e9d8f469697cb8850c8aa9214fde887cb00 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:41,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:41,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:41,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:41,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:41,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:41,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:41,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:41,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:41,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:41,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:41,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:41,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:41,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:41,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:41,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:41,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:41,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:41,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:41,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:41,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:41,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:41,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:41,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:41,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:41,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:41,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:41,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:41,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:41,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:41,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:41,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:41,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:41,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:41,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:41,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:41,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:41,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:41,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:41,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:41,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:41,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:22:41,609 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:41,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:41,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:41,611 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:41,611 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:41,611 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:41,612 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:41,612 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:41,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:41,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:41,613 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:41,613 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:41,613 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:41,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:41,614 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:41,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:22:41,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:22:41,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:41,615 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:41,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:22:41,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:41,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:41,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:41,617 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:22:41,617 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:22:41,617 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:22:41,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:41,618 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:41,618 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:41,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:41,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:41,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:41,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:41,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:41,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:41,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:41,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:41,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:41,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:41,621 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2021-10-11 02:22:41,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:41,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:41,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:41,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:41,901 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:41,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-10-11 02:22:41,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/38057585f/f32e91bb3ba54930a3bc43d48a826e75/FLAG26b33ac15 [2021-10-11 02:22:42,491 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:42,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-10-11 02:22:42,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/38057585f/f32e91bb3ba54930a3bc43d48a826e75/FLAG26b33ac15 [2021-10-11 02:22:42,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/38057585f/f32e91bb3ba54930a3bc43d48a826e75 [2021-10-11 02:22:42,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:42,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:42,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:42,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:42,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:42,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:42" (1/1) ... [2021-10-11 02:22:42,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621fa0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:42, skipping insertion in model container [2021-10-11 02:22:42,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:42" (1/1) ... [2021-10-11 02:22:42,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:42,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:43,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:43,423 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:22:43,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56dc851f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:43, skipping insertion in model container [2021-10-11 02:22:43,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:43,425 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:22:43,429 INFO L168 Benchmark]: Toolchain (without parser) took 615.97 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.0 MB in the beginning and 72.2 MB in the end (delta: -22.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:43,431 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:43,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.65 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.8 MB in the beginning and 72.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:43,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.65 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.8 MB in the beginning and 72.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:45,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:45,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:45,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:45,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:45,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:45,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:45,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:45,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:45,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:45,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:45,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:45,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:45,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:45,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:45,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:45,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:45,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:45,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:45,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:45,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:45,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:45,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:45,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:45,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:45,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:45,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:45,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:45,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:45,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:45,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:45,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:45,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:45,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:45,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:45,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:45,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:45,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:45,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:45,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:45,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:45,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:22:45,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:45,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:45,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:45,979 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:45,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:45,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:45,979 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:45,979 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:45,979 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:45,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:22:45,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:22:45,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:45,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:45,981 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:22:45,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:45,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:45,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:45,982 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:22:45,982 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:22:45,982 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:22:45,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:45,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:45,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:22:45,983 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:22:45,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:45,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:45,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:45,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:22:45,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:45,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:45,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:45,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:45,985 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:22:45,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:22:45,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:45,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:45,986 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2021-10-11 02:22:46,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:46,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:46,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:46,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:46,440 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:46,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-10-11 02:22:46,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/d076c04b4/717eed1d913c447bbd41233c33ccadfc/FLAG108a7a25f [2021-10-11 02:22:47,141 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:47,142 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2021-10-11 02:22:47,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/d076c04b4/717eed1d913c447bbd41233c33ccadfc/FLAG108a7a25f [2021-10-11 02:22:47,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/data/d076c04b4/717eed1d913c447bbd41233c33ccadfc [2021-10-11 02:22:47,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:47,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:47,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:47,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:47,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:47,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:47" (1/1) ... [2021-10-11 02:22:47,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2f3df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:47, skipping insertion in model container [2021-10-11 02:22:47,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:47" (1/1) ... [2021-10-11 02:22:47,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:47,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:47,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:48,003 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:22:48,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:48,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:48,082 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:48,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:48,315 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:48,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48 WrapperNode [2021-10-11 02:22:48,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:48,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:48,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:48,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:48,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:48,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:48,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:48,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:48,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:48,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:48,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:48,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:48,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:22:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:48,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:22:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-11 02:22:48,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:48,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:48,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:48,911 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-11 02:22:48,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:48 BoogieIcfgContainer [2021-10-11 02:22:48,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:48,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:48,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:48,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:48,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:47" (1/3) ... [2021-10-11 02:22:48,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bce987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:48, skipping insertion in model container [2021-10-11 02:22:48,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (2/3) ... [2021-10-11 02:22:48,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bce987d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:48, skipping insertion in model container [2021-10-11 02:22:48,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:48" (3/3) ... [2021-10-11 02:22:48,921 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2021-10-11 02:22:48,935 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:48,938 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-10-11 02:22:48,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-11 02:22:48,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:48,978 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:22:48,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:48,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:48,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:48,978 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:48,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:48,978 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 02:22:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:22:49,005 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:49,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:49,006 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965639, now seen corresponding path program 1 times [2021-10-11 02:22:49,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:49,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623135576] [2021-10-11 02:22:49,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:49,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:22:49,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:49,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:49,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:49,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623135576] [2021-10-11 02:22:49,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:49,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:22:49,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144094632] [2021-10-11 02:22:49,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:22:49,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:49,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:22:49,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:49,299 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2021-10-11 02:22:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:49,409 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-10-11 02:22:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:22:49,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:22:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:49,421 INFO L225 Difference]: With dead ends: 29 [2021-10-11 02:22:49,421 INFO L226 Difference]: Without dead ends: 25 [2021-10-11 02:22:49,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:22:49,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-11 02:22:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2021-10-11 02:22:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:22:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-11 02:22:49,459 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-11 02:22:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:49,459 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-11 02:22:49,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:22:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-11 02:22:49,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:22:49,460 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:49,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:49,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:22:49,673 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:49,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2021-10-11 02:22:49,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:49,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228476301] [2021-10-11 02:22:49,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:49,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:22:49,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:49,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:49,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228476301] [2021-10-11 02:22:49,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:49,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:49,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302831705] [2021-10-11 02:22:49,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:22:49,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:49,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:22:49,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:49,798 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2021-10-11 02:22:49,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:49,855 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-11 02:22:49,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:49,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:22:49,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:49,858 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:22:49,858 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:22:49,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:22:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:22:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:22:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:22:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 02:22:49,878 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2021-10-11 02:22:49,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:49,886 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 02:22:49,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:22:49,887 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 02:22:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:22:49,888 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:49,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:50,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:22:50,107 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:50,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:50,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812681, now seen corresponding path program 1 times [2021-10-11 02:22:50,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:50,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464868879] [2021-10-11 02:22:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:50,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:22:50,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:50,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:50,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464868879] [2021-10-11 02:22:50,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:50,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:50,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131819853] [2021-10-11 02:22:50,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:50,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:50,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:50,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:50,184 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2021-10-11 02:22:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:50,203 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-10-11 02:22:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:50,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2021-10-11 02:22:50,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:50,204 INFO L225 Difference]: With dead ends: 22 [2021-10-11 02:22:50,204 INFO L226 Difference]: Without dead ends: 21 [2021-10-11 02:22:50,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-11 02:22:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 13. [2021-10-11 02:22:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:22:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 02:22:50,208 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-11 02:22:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:50,208 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 02:22:50,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 02:22:50,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:22:50,209 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:50,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:50,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:22:50,424 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:50,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:50,425 INFO L82 PathProgramCache]: Analyzing trace with hash 119352011, now seen corresponding path program 1 times [2021-10-11 02:22:50,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:50,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862495576] [2021-10-11 02:22:50,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:50,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:22:50,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:50,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:50,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862495576] [2021-10-11 02:22:50,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:50,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:50,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249379631] [2021-10-11 02:22:50,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:22:50,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:50,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:22:50,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:22:50,612 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2021-10-11 02:22:50,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:50,747 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-10-11 02:22:50,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:22:50,748 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2021-10-11 02:22:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:50,749 INFO L225 Difference]: With dead ends: 22 [2021-10-11 02:22:50,749 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 02:22:50,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:22:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 02:22:50,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2021-10-11 02:22:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:22:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-11 02:22:50,752 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2021-10-11 02:22:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:50,753 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-11 02:22:50,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:22:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-11 02:22:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:22:50,753 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:50,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:50,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:22:50,954 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:50,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:50,955 INFO L82 PathProgramCache]: Analyzing trace with hash 176610313, now seen corresponding path program 1 times [2021-10-11 02:22:50,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:50,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963411509] [2021-10-11 02:22:50,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:50,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:22:50,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:51,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:51,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963411509] [2021-10-11 02:22:51,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:51,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:22:51,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970384505] [2021-10-11 02:22:51,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:22:51,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:51,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:22:51,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:51,039 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2021-10-11 02:22:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:51,097 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-10-11 02:22:51,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:51,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:22:51,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:51,098 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:22:51,098 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:22:51,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:22:51,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:22:51,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:22:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:22:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-10-11 02:22:51,101 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2021-10-11 02:22:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:51,101 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-10-11 02:22:51,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:22:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-10-11 02:22:51,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:22:51,102 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:51,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:51,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:22:51,320 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:51,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:51,320 INFO L82 PathProgramCache]: Analyzing trace with hash -595054905, now seen corresponding path program 1 times [2021-10-11 02:22:51,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:51,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949971024] [2021-10-11 02:22:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:51,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:22:51,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:51,418 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-11 02:22:51,419 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:22:51,421 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:22:51,422 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:22:51,423 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-10-11 02:22:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:51,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:51,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949971024] [2021-10-11 02:22:51,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:51,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:51,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405204229] [2021-10-11 02:22:51,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:22:51,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:51,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:22:51,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:51,447 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2021-10-11 02:22:51,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:51,499 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-11 02:22:51,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:51,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:22:51,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:51,500 INFO L225 Difference]: With dead ends: 11 [2021-10-11 02:22:51,501 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:22:51,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:22:51,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:22:51,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:22:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:22:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-11 02:22:51,503 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2021-10-11 02:22:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:51,504 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-11 02:22:51,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:22:51,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-11 02:22:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:22:51,505 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:51,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:51,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:22:51,722 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2021-10-11 02:22:51,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:51,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1266832815, now seen corresponding path program 1 times [2021-10-11 02:22:51,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:51,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594366786] [2021-10-11 02:22:51,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:22:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:51,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:22:51,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:51,801 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:22:51,802 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2021-10-11 02:22:51,805 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:22:51,824 INFO L625 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2021-10-11 02:22:51,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:22:51,833 INFO L547 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. [2021-10-11 02:22:51,833 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:15 [2021-10-11 02:22:51,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:22:51,849 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:22:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:54,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:54,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594366786] [2021-10-11 02:22:54,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:54,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:22:54,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992512193] [2021-10-11 02:22:54,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:22:54,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:54,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:22:54,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=36, Unknown=1, NotChecked=0, Total=56 [2021-10-11 02:22:54,124 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 8 states. [2021-10-11 02:22:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:56,366 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-10-11 02:22:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:22:56,367 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2021-10-11 02:22:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:56,367 INFO L225 Difference]: With dead ends: 10 [2021-10-11 02:22:56,368 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:22:56,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2021-10-11 02:22:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:22:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:22:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:22:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:22:56,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:22:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:56,369 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:22:56,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:22:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:22:56,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:22:56,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:22:56,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:56 BoogieIcfgContainer [2021-10-11 02:22:56,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:56,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:56,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:56,574 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:56,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:48" (3/4) ... [2021-10-11 02:22:56,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:22:56,593 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:22:56,593 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:22:56,593 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:22:56,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d149d52-7c32-4ae1-bf67-43cb16e660ec/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:22:56,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:56,637 INFO L168 Benchmark]: Toolchain (without parser) took 9218.68 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 31.8 MB in the beginning and 32.8 MB in the end (delta: -1.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:56,638 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:56,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 899.70 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.5 MB in the beginning and 32.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:56,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.34 ms. Allocated memory is still 67.1 MB. Free memory was 32.7 MB in the beginning and 30.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:56,639 INFO L168 Benchmark]: Boogie Preprocessor took 64.76 ms. Allocated memory is still 67.1 MB. Free memory was 30.6 MB in the beginning and 29.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:56,640 INFO L168 Benchmark]: RCFGBuilder took 460.17 ms. Allocated memory is still 67.1 MB. Free memory was 29.3 MB in the beginning and 34.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:56,640 INFO L168 Benchmark]: TraceAbstraction took 7658.47 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.4 MB in the beginning and 35.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:56,641 INFO L168 Benchmark]: Witness Printer took 58.79 ms. Allocated memory is still 81.8 MB. Free memory was 35.4 MB in the beginning and 32.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:56,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 899.70 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.5 MB in the beginning and 32.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.34 ms. Allocated memory is still 67.1 MB. Free memory was 32.7 MB in the beginning and 30.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.76 ms. Allocated memory is still 67.1 MB. Free memory was 30.6 MB in the beginning and 29.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 460.17 ms. Allocated memory is still 67.1 MB. Free memory was 29.3 MB in the beginning and 34.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7658.47 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.4 MB in the beginning and 35.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 58.79 ms. Allocated memory is still 81.8 MB. Free memory was 35.4 MB in the beginning and 32.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 119 SDslu, 87 SDs, 0 SdLazy, 136 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 49 ConstructedInterpolants, 9 QuantifiedInterpolants, 2425 SizeOfPredicates, 21 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...