./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh --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 58596999bba5cc256a412be61e4f9e3e6d264c81e8972a76406a7a850d8c4606 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:26:26,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:26:26,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:26:26,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:26:26,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:26:26,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:26:26,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:26:26,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:26:26,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:26:26,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:26:26,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:26:26,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:26:26,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:26:26,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:26:26,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:26:26,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:26:26,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:26:26,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:26:26,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:26:26,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:26:26,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:26:26,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:26:26,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:26:26,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:26:26,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:26:26,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:26:26,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:26:26,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:26:26,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:26:26,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:26:26,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:26:26,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:26:26,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:26:26,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:26:26,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:26:26,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:26:26,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:26:26,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:26:26,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:26:26,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:26:26,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:26:26,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 07:26:26,838 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:26:26,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:26:26,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:26:26,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:26:26,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:26:26,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:26:26,840 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:26:26,840 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:26:26,840 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:26:26,840 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:26:26,840 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:26:26,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:26:26,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:26:26,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:26:26,841 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:26:26,841 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:26:26,841 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:26:26,841 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:26:26,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:26:26,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:26:26,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:26:26,843 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:26:26,843 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:26:26,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:26:26,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:26:26,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:26:26,843 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:26:26,844 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:26:26,844 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:26:26,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:26:26,844 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:26:26,844 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:26:26,844 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:26:26,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:26:26,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:26:26,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:26:26,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:26:26,845 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:26:26,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:26:26,846 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:26:26,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:26:26,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:26:26,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58596999bba5cc256a412be61e4f9e3e6d264c81e8972a76406a7a850d8c4606 [2022-12-14 07:26:27,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:26:27,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:26:27,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:26:27,076 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:26:27,077 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:26:27,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2022-12-14 07:26:29,677 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:26:29,808 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:26:29,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2022-12-14 07:26:29,814 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data/39a073c46/e42b768a2fe74fbe8d2f9efb9e91009a/FLAG9c05978b6 [2022-12-14 07:26:29,827 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data/39a073c46/e42b768a2fe74fbe8d2f9efb9e91009a [2022-12-14 07:26:29,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:26:29,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:26:29,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:26:29,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:26:29,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:26:29,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:26:29" (1/1) ... [2022-12-14 07:26:29,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bffa17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:29, skipping insertion in model container [2022-12-14 07:26:29,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:26:29" (1/1) ... [2022-12-14 07:26:29,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:26:29,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:26:29,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:26:29,975 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:26:29,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:26:29,997 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:26:29,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:29 WrapperNode [2022-12-14 07:26:29,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:26:29,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:26:29,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:26:29,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:26:30,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:29" (1/1) ... [2022-12-14 07:26:30,010 ERROR L1136 TypeChecker]: C: arr [6]: Undeclared identifier ~#arr~0 in IdentifierExpression[~#arr~0,GLOBAL] [2022-12-14 07:26:30,011 ERROR L1136 TypeChecker]: C: arr[194] = 13 [6]: Wrong parameter type at index 1: CallStatement[null,false,[],write~int,[IntegerLiteral[13],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#arr~0,GLOBAL],base],BinaryExpression[ARITHPLUS,IntegerLiteral[776],StructAccessExpression[IdentifierExpression[~#arr~0,GLOBAL],offset]]]],IntegerLiteral[4]]] [2022-12-14 07:26:30,011 ERROR L1136 TypeChecker]: C: arr [7]: Undeclared identifier ~#arr~0 in IdentifierExpression[~#arr~0,GLOBAL] [2022-12-14 07:26:30,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:29" (1/1) ... [2022-12-14 07:26:30,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:26:30,012 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2022-12-14 07:26:30,013 INFO L158 Benchmark]: Toolchain (without parser) took 182.60ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 90.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:26:30,013 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:26:30,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.43ms. Allocated memory is still 144.7MB. Free memory was 101.0MB in the beginning and 91.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:26:30,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 13.71ms. Allocated memory is still 144.7MB. Free memory was 91.3MB in the beginning and 90.4MB in the end (delta: 899.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:26:30,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.43ms. Allocated memory is still 144.7MB. Free memory was 101.0MB in the beginning and 91.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 13.71ms. Allocated memory is still 144.7MB. Free memory was 91.3MB in the beginning and 90.4MB in the end (delta: 899.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: 6]: Type Error Undeclared identifier ~#arr~0 in IdentifierExpression[~#arr~0,GLOBAL] - TypeErrorResult [Line: 6]: Type Error Wrong parameter type at index 1: CallStatement[null,false,[],write~int,[IntegerLiteral[13],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#arr~0,GLOBAL],base],BinaryExpression[ARITHPLUS,IntegerLiteral[776],StructAccessExpression[IdentifierExpression[~#arr~0,GLOBAL],offset]]]],IntegerLiteral[4]]] - TypeErrorResult [Line: 7]: Type Error Undeclared identifier ~#arr~0 in IdentifierExpression[~#arr~0,GLOBAL] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh --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 58596999bba5cc256a412be61e4f9e3e6d264c81e8972a76406a7a850d8c4606 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:26:31,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:26:31,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:26:31,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:26:31,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:26:31,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:26:31,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:26:31,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:26:31,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:26:31,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:26:31,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:26:31,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:26:31,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:26:31,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:26:31,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:26:31,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:26:31,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:26:31,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:26:31,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:26:31,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:26:31,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:26:31,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:26:31,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:26:31,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:26:31,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:26:31,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:26:31,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:26:31,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:26:31,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:26:31,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:26:31,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:26:31,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:26:31,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:26:31,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:26:31,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:26:31,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:26:31,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:26:31,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:26:31,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:26:31,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:26:31,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:26:31,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 07:26:31,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:26:31,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:26:31,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:26:31,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:26:31,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:26:31,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:26:31,477 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:26:31,477 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:26:31,477 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:26:31,478 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:26:31,478 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:26:31,478 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:26:31,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:26:31,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:26:31,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:26:31,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:26:31,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:26:31,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:26:31,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:26:31,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:26:31,480 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:26:31,480 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:26:31,480 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:26:31,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:26:31,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:26:31,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:26:31,481 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:26:31,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:26:31,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:26:31,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:26:31,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:26:31,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:26:31,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:26:31,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:26:31,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:26:31,482 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:26:31,486 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:26:31,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:26:31,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:26:31,486 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_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58596999bba5cc256a412be61e4f9e3e6d264c81e8972a76406a7a850d8c4606 [2022-12-14 07:26:31,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:26:31,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:26:31,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:26:31,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:26:31,754 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:26:31,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2022-12-14 07:26:34,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:26:34,421 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:26:34,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2022-12-14 07:26:34,426 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data/b894f9052/c8d97c2b709e4e7e8e1da41729df33b6/FLAG7948e21be [2022-12-14 07:26:34,437 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/data/b894f9052/c8d97c2b709e4e7e8e1da41729df33b6 [2022-12-14 07:26:34,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:26:34,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:26:34,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:26:34,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:26:34,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:26:34,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adae196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34, skipping insertion in model container [2022-12-14 07:26:34,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:26:34,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:26:34,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:26:34,583 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:26:34,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:26:34,603 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:26:34,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34 WrapperNode [2022-12-14 07:26:34,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:26:34,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:26:34,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:26:34,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:26:34,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,629 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 23 [2022-12-14 07:26:34,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:26:34,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:26:34,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:26:34,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:26:34,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:26:34,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:26:34,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:26:34,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:26:34,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (1/1) ... [2022-12-14 07:26:34,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:26:34,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:26:34,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:26:34,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:26:34,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:26:34,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 07:26:34,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:26:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:26:34,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 07:26:34,762 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:26:34,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:26:34,883 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:26:34,888 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:26:34,888 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:26:34,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:26:34 BoogieIcfgContainer [2022-12-14 07:26:34,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:26:34,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:26:34,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:26:34,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:26:34,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:26:34" (1/3) ... [2022-12-14 07:26:34,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d2290d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:26:34, skipping insertion in model container [2022-12-14 07:26:34,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:26:34" (2/3) ... [2022-12-14 07:26:34,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d2290d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:26:34, skipping insertion in model container [2022-12-14 07:26:34,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:26:34" (3/3) ... [2022-12-14 07:26:34,896 INFO L112 eAbstractionObserver]: Analyzing ICFG scopes4-1.c [2022-12-14 07:26:34,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:26:34,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-12-14 07:26:34,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:26:34,947 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51d9b944, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:26:34,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 07:26:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.5) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:34,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 07:26:34,954 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:34,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 07:26:34,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2022-12-14 07:26:34,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-14 07:26:34,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:34,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099410295] [2022-12-14 07:26:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:34,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:34,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:26:34,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 07:26:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:35,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:26:35,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:35,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:35,108 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:35,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099410295] [2022-12-14 07:26:35,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099410295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:35,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:35,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:26:35,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771170655] [2022-12-14 07:26:35,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:35,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:26:35,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:35,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:26:35,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:35,147 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.5) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:35,185 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-12-14 07:26:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:26:35,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 07:26:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:35,194 INFO L225 Difference]: With dead ends: 15 [2022-12-14 07:26:35,194 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 07:26:35,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:35,199 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:35,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 07:26:35,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 07:26:35,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:35,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2022-12-14 07:26:35,229 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 3 [2022-12-14 07:26:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:35,229 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2022-12-14 07:26:35,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2022-12-14 07:26:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 07:26:35,230 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:35,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 07:26:35,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:26:35,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:35,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2022-12-14 07:26:35,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-14 07:26:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:35,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289576812] [2022-12-14 07:26:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:35,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:35,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:35,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:26:35,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 07:26:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:35,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:26:35,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:35,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:35,504 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:35,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289576812] [2022-12-14 07:26:35,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289576812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:35,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:35,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:26:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93163174] [2022-12-14 07:26:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:35,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:26:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:26:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:35,507 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:35,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:35,523 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-12-14 07:26:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:26:35,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 07:26:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:35,524 INFO L225 Difference]: With dead ends: 12 [2022-12-14 07:26:35,524 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 07:26:35,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:35,526 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:35,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 07:26:35,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 07:26:35,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-12-14 07:26:35,530 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2022-12-14 07:26:35,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:35,530 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-12-14 07:26:35,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-12-14 07:26:35,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 07:26:35,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:35,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:35,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 07:26:35,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:35,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2022-12-14 07:26:35,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:35,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1803025956, now seen corresponding path program 1 times [2022-12-14 07:26:35,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:35,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913537218] [2022-12-14 07:26:35,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:35,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:35,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:35,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:26:35,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 07:26:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:35,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 07:26:35,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:36,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:36,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:36,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:36,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913537218] [2022-12-14 07:26:36,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913537218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:36,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:36,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:26:36,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942569886] [2022-12-14 07:26:36,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:36,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:26:36,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:36,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:26:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:26:36,037 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:36,103 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-12-14 07:26:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:26:36,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 07:26:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:36,104 INFO L225 Difference]: With dead ends: 11 [2022-12-14 07:26:36,104 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 07:26:36,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:26:36,105 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:36,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 07:26:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 07:26:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-12-14 07:26:36,107 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 7 [2022-12-14 07:26:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:36,107 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-12-14 07:26:36,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-12-14 07:26:36,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 07:26:36,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:36,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:36,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 07:26:36,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:36,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2022-12-14 07:26:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1803025957, now seen corresponding path program 1 times [2022-12-14 07:26:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:36,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905246580] [2022-12-14 07:26:36,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:36,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:36,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:36,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:26:36,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 07:26:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:36,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 07:26:36,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:36,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:36,473 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:36,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905246580] [2022-12-14 07:26:36,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905246580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:36,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:36,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:26:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687193146] [2022-12-14 07:26:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:36,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:26:36,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:26:36,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:26:36,481 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:36,550 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-12-14 07:26:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:26:36,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 07:26:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:36,551 INFO L225 Difference]: With dead ends: 10 [2022-12-14 07:26:36,551 INFO L226 Difference]: Without dead ends: 10 [2022-12-14 07:26:36,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:26:36,552 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:36,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-14 07:26:36,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-14 07:26:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-12-14 07:26:36,555 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 7 [2022-12-14 07:26:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:36,555 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-12-14 07:26:36,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-12-14 07:26:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:26:36,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:26:36,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:26:36,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 07:26:36,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:36,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2022-12-14 07:26:36,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:26:36,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1836122917, now seen corresponding path program 1 times [2022-12-14 07:26:36,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:26:36,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011540453] [2022-12-14 07:26:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:26:36,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:36,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:26:36,766 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 07:26:36,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 07:26:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:26:36,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:26:36,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:26:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:26:36,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:26:36,937 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:26:36,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011540453] [2022-12-14 07:26:36,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011540453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:26:36,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:26:36,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:26:36,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085060663] [2022-12-14 07:26:36,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:26:36,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:26:36,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:26:36,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:26:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:36,940 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:26:36,953 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-12-14 07:26:36,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:26:36,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 07:26:36,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:26:36,954 INFO L225 Difference]: With dead ends: 9 [2022-12-14 07:26:36,955 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:26:36,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:26:36,956 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:26:36,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:26:36,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:26:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:26:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:26:36,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-12-14 07:26:36,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:26:36,959 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:26:36,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:26:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:26:36,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:26:36,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2022-12-14 07:26:36,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-14 07:26:36,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-12-14 07:26:36,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 5 remaining) [2022-12-14 07:26:36,964 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2022-12-14 07:26:36,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 07:26:37,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 07:26:37,169 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 07:26:37,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:26:37,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:26:37 BoogieIcfgContainer [2022-12-14 07:26:37,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:26:37,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:26:37,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:26:37,178 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:26:37,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:26:34" (3/4) ... [2022-12-14 07:26:37,183 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:26:37,205 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 07:26:37,205 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 07:26:37,206 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 07:26:37,238 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:26:37,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:26:37,239 INFO L158 Benchmark]: Toolchain (without parser) took 2798.59ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 39.6MB in the end (delta: 14.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-12-14 07:26:37,239 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 42.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:26:37,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.00ms. Allocated memory is still 75.5MB. Free memory was 53.9MB in the beginning and 44.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:26:37,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.44ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 42.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:26:37,240 INFO L158 Benchmark]: Boogie Preprocessor took 16.09ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 41.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:26:37,240 INFO L158 Benchmark]: RCFGBuilder took 243.39ms. Allocated memory is still 75.5MB. Free memory was 41.4MB in the beginning and 52.7MB in the end (delta: -11.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-12-14 07:26:37,240 INFO L158 Benchmark]: TraceAbstraction took 2285.64ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 42.2MB in the end (delta: 9.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-12-14 07:26:37,241 INFO L158 Benchmark]: Witness Printer took 60.93ms. Allocated memory is still 75.5MB. Free memory was 42.2MB in the beginning and 39.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:26:37,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 42.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.00ms. Allocated memory is still 75.5MB. Free memory was 53.9MB in the beginning and 44.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.44ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 42.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.09ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 41.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 243.39ms. Allocated memory is still 75.5MB. Free memory was 41.4MB in the beginning and 52.7MB in the end (delta: -11.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2285.64ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 42.2MB in the end (delta: 9.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 60.93ms. Allocated memory is still 75.5MB. Free memory was 42.2MB in the beginning and 39.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 9 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 07:26:37,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c449d2df-1d66-4af9-aeb0-5d83e77f17ae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE