./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:58,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:58,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:58,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:58,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:58,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:58,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:58,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:58,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:58,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:58,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:58,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:58,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:58,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:58,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:58,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:58,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:58,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:58,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:58,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:58,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:58,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:58,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:58,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:58,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:58,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:58,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:58,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:58,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:58,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:58,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:58,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:58,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:58,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:58,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:58,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:58,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:58,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:58,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:58,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:58,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:58,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:27:58,993 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:58,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:58,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:58,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:58,997 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:58,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:58,998 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:58,998 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:27:58,998 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:58,999 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:59,000 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:27:59,000 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:27:59,001 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:59,001 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:27:59,001 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:27:59,002 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:27:59,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:59,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:59,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:27:59,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:59,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:59,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:59,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:59,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:59,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:59,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:59,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:59,006 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:59,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:59,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:59,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:59,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:59,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:59,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:59,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:59,010 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:27:59,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:27:59,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:59,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:59,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:59,012 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 [2021-11-12 22:27:59,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:59,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:59,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:59,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:59,433 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:59,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2021-11-12 22:27:59,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/25381cc0e/0379f86618d64cb0b6cc7086f5ea7182/FLAG2b5651e05 [2021-11-12 22:28:00,211 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:28:00,214 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2021-11-12 22:28:00,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/25381cc0e/0379f86618d64cb0b6cc7086f5ea7182/FLAG2b5651e05 [2021-11-12 22:28:00,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/25381cc0e/0379f86618d64cb0b6cc7086f5ea7182 [2021-11-12 22:28:00,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:28:00,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:28:00,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:00,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:28:00,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:28:00,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:00" (1/1) ... [2021-11-12 22:28:00,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18114bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:00, skipping insertion in model container [2021-11-12 22:28:00,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:00" (1/1) ... [2021-11-12 22:28:00,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:28:00,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:28:00,880 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-11-12 22:28:00,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:28:00,897 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:28:00,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2efc2dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:00, skipping insertion in model container [2021-11-12 22:28:00,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:00,899 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:28:00,902 INFO L158 Benchmark]: Toolchain (without parser) took 453.74ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 88.6MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:28:00,903 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:28:00,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.98ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 88.6MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:28:00,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.98ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 88.6MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 404]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:28:03,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:28:03,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:28:03,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:28:03,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:28:03,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:28:03,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:28:03,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:28:03,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:28:03,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:28:03,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:28:03,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:28:03,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:28:03,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:28:03,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:28:03,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:28:03,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:28:03,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:28:03,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:28:03,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:28:03,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:28:03,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:28:03,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:28:03,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:28:03,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:28:03,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:28:03,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:28:03,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:28:03,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:28:03,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:28:03,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:28:03,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:28:03,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:28:03,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:28:03,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:28:03,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:28:03,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:28:03,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:28:03,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:28:03,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:28:03,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:28:03,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:28:03,957 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:28:03,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:28:03,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:28:03,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:28:03,960 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:28:03,961 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:28:03,961 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:28:03,962 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:28:03,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:28:03,962 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:28:03,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:28:03,964 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:28:03,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:28:03,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:28:03,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:28:03,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:28:03,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:28:03,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:28:03,971 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:28:03,971 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:28:03,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:28:03,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:28:03,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:28:03,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:28:03,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:28:03,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:28:03,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:28:03,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:28:03,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:28:03,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:28:03,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:28:03,979 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:28:03,979 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:03,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:28:03,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:28:03,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:28:03,981 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_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469e121da4ec833c883deffdd0e34cc6fa7cb9d795a4a108dd1361b9d2695780 [2021-11-12 22:28:04,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:28:04,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:28:04,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:28:04,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:28:04,576 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:28:04,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2021-11-12 22:28:04,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/c73d3d0b7/4f8b7254f2314a33bec21065fc887ad7/FLAGd9f92bc51 [2021-11-12 22:28:05,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:28:05,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2021-11-12 22:28:05,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/c73d3d0b7/4f8b7254f2314a33bec21065fc887ad7/FLAGd9f92bc51 [2021-11-12 22:28:05,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/data/c73d3d0b7/4f8b7254f2314a33bec21065fc887ad7 [2021-11-12 22:28:05,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:28:05,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:28:05,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:05,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:28:05,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:28:05,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:05" (1/1) ... [2021-11-12 22:28:05,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40214870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:05, skipping insertion in model container [2021-11-12 22:28:05,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:05" (1/1) ... [2021-11-12 22:28:05,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:28:05,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:28:06,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-11-12 22:28:06,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:28:06,242 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:28:06,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:28:06,401 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-11-12 22:28:06,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:28:06,420 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:28:06,549 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-11-12 22:28:06,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:28:06,586 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:28:06,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06 WrapperNode [2021-11-12 22:28:06,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:06,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:28:06,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:28:06,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:28:06,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:28:06,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:28:06,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:28:06,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:28:06,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:28:06,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:28:06,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:28:06,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:28:06,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (1/1) ... [2021-11-12 22:28:06,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:28:06,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:28:06,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:28:06,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:28:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:28:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:28:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:28:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-11-12 22:28:06,984 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-11-12 22:28:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:28:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:28:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:28:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:28:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:28:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:28:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:28:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-11-12 22:28:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-11-12 22:28:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-11-12 22:28:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:28:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:28:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:28:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-11-12 22:28:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-11-12 22:28:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:28:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:28:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:28:08,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:28:08,509 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-12 22:28:08,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:08 BoogieIcfgContainer [2021-11-12 22:28:08,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:28:08,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:28:08,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:28:08,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:28:08,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:28:05" (1/3) ... [2021-11-12 22:28:08,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b083b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:28:08, skipping insertion in model container [2021-11-12 22:28:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:06" (2/3) ... [2021-11-12 22:28:08,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b083b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:28:08, skipping insertion in model container [2021-11-12 22:28:08,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:08" (3/3) ... [2021-11-12 22:28:08,523 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2021-11-12 22:28:08,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:28:08,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:28:08,595 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:28:08,604 INFO L339 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:28:08,605 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:28:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 90 states have (on average 1.6) internal successors, (144), 91 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 22:28:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:28:08,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:08,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:08,644 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1385875532, now seen corresponding path program 1 times [2021-11-12 22:28:08,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:08,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555697688] [2021-11-12 22:28:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:08,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:08,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:08,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:08,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:28:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:09,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:28:09,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:09,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:09,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:09,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555697688] [2021-11-12 22:28:09,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555697688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:09,292 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:09,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:28:09,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905110307] [2021-11-12 22:28:09,295 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:09,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:28:09,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:28:09,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:28:09,338 INFO L87 Difference]: Start difference. First operand has 103 states, 90 states have (on average 1.6) internal successors, (144), 91 states have internal predecessors, (144), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:09,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:09,384 INFO L93 Difference]: Finished difference Result 201 states and 320 transitions. [2021-11-12 22:28:09,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:28:09,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2021-11-12 22:28:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:09,397 INFO L225 Difference]: With dead ends: 201 [2021-11-12 22:28:09,398 INFO L226 Difference]: Without dead ends: 97 [2021-11-12 22:28:09,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:28:09,408 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:09,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 2.57ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:28:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-12 22:28:09,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-12 22:28:09,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 86 states have internal predecessors, (129), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:28:09,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 144 transitions. [2021-11-12 22:28:09,467 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 144 transitions. Word has length 26 [2021-11-12 22:28:09,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:09,468 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 144 transitions. [2021-11-12 22:28:09,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:09,469 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 144 transitions. [2021-11-12 22:28:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 22:28:09,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:09,473 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:09,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:09,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:09,700 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:09,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1499432241, now seen corresponding path program 1 times [2021-11-12 22:28:09,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:09,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385048053] [2021-11-12 22:28:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:09,703 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:09,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:09,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:09,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:28:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:09,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:09,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:10,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:10,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:10,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385048053] [2021-11-12 22:28:10,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385048053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:10,256 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:10,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:28:10,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125442193] [2021-11-12 22:28:10,264 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:10,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:28:10,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:10,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:28:10,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:10,274 INFO L87 Difference]: Start difference. First operand 97 states and 144 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:10,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:10,469 INFO L93 Difference]: Finished difference Result 258 states and 395 transitions. [2021-11-12 22:28:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:28:10,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2021-11-12 22:28:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:10,475 INFO L225 Difference]: With dead ends: 258 [2021-11-12 22:28:10,478 INFO L226 Difference]: Without dead ends: 166 [2021-11-12 22:28:10,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:28:10,486 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 88 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.22ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.05ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:10,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 464 Invalid, 24 Unknown, 0 Unchecked, 10.22ms Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 125.05ms Time] [2021-11-12 22:28:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-12 22:28:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 100. [2021-11-12 22:28:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 88 states have (on average 1.5) internal successors, (132), 89 states have internal predecessors, (132), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:28:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 147 transitions. [2021-11-12 22:28:10,527 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 147 transitions. Word has length 30 [2021-11-12 22:28:10,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:10,527 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 147 transitions. [2021-11-12 22:28:10,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 147 transitions. [2021-11-12 22:28:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 22:28:10,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:10,536 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:10,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:10,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:10,751 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:10,752 INFO L85 PathProgramCache]: Analyzing trace with hash -358645607, now seen corresponding path program 1 times [2021-11-12 22:28:10,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:10,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034744387] [2021-11-12 22:28:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:10,753 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:10,758 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:10,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:28:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:11,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:11,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:11,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:11,320 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:11,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034744387] [2021-11-12 22:28:11,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034744387] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:11,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1866015283] [2021-11-12 22:28:11,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:11,321 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:11,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:11,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:11,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 22:28:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:11,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:28:11,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:28:11,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:28:11,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1866015283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:11,847 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:28:11,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 12 [2021-11-12 22:28:11,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093798754] [2021-11-12 22:28:11,847 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:11,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:28:11,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:11,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:28:11,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:28:11,850 INFO L87 Difference]: Start difference. First operand 100 states and 147 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:12,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:12,048 INFO L93 Difference]: Finished difference Result 187 states and 262 transitions. [2021-11-12 22:28:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:28:12,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2021-11-12 22:28:12,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:12,056 INFO L225 Difference]: With dead ends: 187 [2021-11-12 22:28:12,056 INFO L226 Difference]: Without dead ends: 161 [2021-11-12 22:28:12,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:28:12,058 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 136 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.53ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123.64ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:12,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 501 Invalid, 53 Unknown, 0 Unchecked, 4.53ms Time], IncrementalHoareTripleChecker [24 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 123.64ms Time] [2021-11-12 22:28:12,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-12 22:28:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 139. [2021-11-12 22:28:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 120 states have (on average 1.45) internal successors, (174), 120 states have internal predecessors, (174), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:28:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2021-11-12 22:28:12,081 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 30 [2021-11-12 22:28:12,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:12,081 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2021-11-12 22:28:12,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:12,082 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2021-11-12 22:28:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-12 22:28:12,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:12,085 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:12,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:12,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:12,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:12,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:12,504 INFO L85 PathProgramCache]: Analyzing trace with hash 925849269, now seen corresponding path program 1 times [2021-11-12 22:28:12,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:12,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456317722] [2021-11-12 22:28:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:12,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:12,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:12,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:12,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:28:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:12,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:12,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:28:12,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:13,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:13,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456317722] [2021-11-12 22:28:13,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456317722] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:13,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [820810427] [2021-11-12 22:28:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:13,081 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:13,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:13,086 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:13,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 22:28:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:13,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:13,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:28:13,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:28:13,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [820810427] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:28:13,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:28:13,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 3] total 10 [2021-11-12 22:28:13,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342834759] [2021-11-12 22:28:13,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:13,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:28:13,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:13,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:28:13,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:28:13,656 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:13,697 INFO L93 Difference]: Finished difference Result 224 states and 319 transitions. [2021-11-12 22:28:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:28:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2021-11-12 22:28:13,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:13,701 INFO L225 Difference]: With dead ends: 224 [2021-11-12 22:28:13,701 INFO L226 Difference]: Without dead ends: 151 [2021-11-12 22:28:13,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:28:13,705 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 15 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.59ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:13,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 278 Invalid, 5 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 30.59ms Time] [2021-11-12 22:28:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-12 22:28:13,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2021-11-12 22:28:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 120 states have (on average 1.4416666666666667) internal successors, (173), 120 states have internal predecessors, (173), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:28:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 200 transitions. [2021-11-12 22:28:13,740 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 200 transitions. Word has length 36 [2021-11-12 22:28:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:13,741 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 200 transitions. [2021-11-12 22:28:13,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:13,741 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 200 transitions. [2021-11-12 22:28:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-12 22:28:13,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:13,746 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:13,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:13,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:14,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:14,162 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:14,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1231707718, now seen corresponding path program 1 times [2021-11-12 22:28:14,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:14,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656738880] [2021-11-12 22:28:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:14,164 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:14,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:14,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:14,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:28:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:14,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:14,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:28:14,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:14,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:14,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656738880] [2021-11-12 22:28:14,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656738880] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:14,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [948375698] [2021-11-12 22:28:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:14,697 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:14,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:14,699 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:14,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 22:28:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:14,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:14,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 22:28:15,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 22:28:15,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [948375698] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:28:15,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:28:15,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 3] total 10 [2021-11-12 22:28:15,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282469171] [2021-11-12 22:28:15,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:15,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:28:15,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:28:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:28:15,212 INFO L87 Difference]: Start difference. First operand 139 states and 200 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:15,287 INFO L93 Difference]: Finished difference Result 210 states and 296 transitions. [2021-11-12 22:28:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:28:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2021-11-12 22:28:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:15,291 INFO L225 Difference]: With dead ends: 210 [2021-11-12 22:28:15,292 INFO L226 Difference]: Without dead ends: 143 [2021-11-12 22:28:15,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:28:15,294 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 46 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.63ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:15,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 228 Invalid, 12 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 61.63ms Time] [2021-11-12 22:28:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-12 22:28:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2021-11-12 22:28:15,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 121 states have (on average 1.43801652892562) internal successors, (174), 121 states have internal predecessors, (174), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:28:15,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 201 transitions. [2021-11-12 22:28:15,312 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 201 transitions. Word has length 37 [2021-11-12 22:28:15,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:15,312 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 201 transitions. [2021-11-12 22:28:15,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:15,313 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 201 transitions. [2021-11-12 22:28:15,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 22:28:15,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:15,315 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:15,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:15,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 22:28:15,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:15,718 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash 255096179, now seen corresponding path program 1 times [2021-11-12 22:28:15,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:15,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552553498] [2021-11-12 22:28:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:15,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:15,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:15,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:15,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:28:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:15,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:15,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:16,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:16,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:16,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552553498] [2021-11-12 22:28:16,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552553498] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:16,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1802151856] [2021-11-12 22:28:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:16,332 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:16,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:16,336 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:16,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-12 22:28:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:16,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:16,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:16,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:17,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1802151856] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:17,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944642294] [2021-11-12 22:28:17,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:17,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:28:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:28:17,021 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:28:17,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-12 22:28:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:17,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:28:17,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 22:28:17,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 22:28:17,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944642294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:17,555 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:28:17,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 9 [2021-11-12 22:28:17,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755739704] [2021-11-12 22:28:17,556 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:17,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:28:17,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:17,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:28:17,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:28:17,557 INFO L87 Difference]: Start difference. First operand 140 states and 201 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:17,651 INFO L93 Difference]: Finished difference Result 194 states and 274 transitions. [2021-11-12 22:28:17,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:28:17,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-11-12 22:28:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:17,661 INFO L225 Difference]: With dead ends: 194 [2021-11-12 22:28:17,661 INFO L226 Difference]: Without dead ends: 140 [2021-11-12 22:28:17,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:28:17,663 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 4 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:17,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 275 Invalid, 4 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 80.55ms Time] [2021-11-12 22:28:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-12 22:28:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-12 22:28:17,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 121 states have (on average 1.4132231404958677) internal successors, (171), 121 states have internal predecessors, (171), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:28:17,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 198 transitions. [2021-11-12 22:28:17,692 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 198 transitions. Word has length 41 [2021-11-12 22:28:17,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:17,692 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 198 transitions. [2021-11-12 22:28:17,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 198 transitions. [2021-11-12 22:28:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-12 22:28:17,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:17,694 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:17,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:17,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:18,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:18,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:28:18,304 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash 255036597, now seen corresponding path program 1 times [2021-11-12 22:28:18,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:18,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628288740] [2021-11-12 22:28:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:18,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:18,307 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:18,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:28:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:18,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:18,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:18,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:18,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:18,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628288740] [2021-11-12 22:28:18,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628288740] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:18,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1930588275] [2021-11-12 22:28:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:18,896 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:18,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:18,897 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:18,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-12 22:28:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:19,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:19,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:19,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:19,649 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:19,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1930588275] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:19,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349312933] [2021-11-12 22:28:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:19,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:28:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:28:19,652 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:28:19,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-12 22:28:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:19,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:28:19,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 22:28:20,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 22:28:20,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349312933] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:20,374 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 22:28:20,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5, 5, 5] total 11 [2021-11-12 22:28:20,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247516041] [2021-11-12 22:28:20,374 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:20,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:28:20,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:20,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:28:20,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-12 22:28:20,376 INFO L87 Difference]: Start difference. First operand 140 states and 198 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:20,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:20,521 INFO L93 Difference]: Finished difference Result 144 states and 203 transitions. [2021-11-12 22:28:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:28:20,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-11-12 22:28:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:20,528 INFO L225 Difference]: With dead ends: 144 [2021-11-12 22:28:20,528 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:28:20,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:28:20,529 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 5 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114.19ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:20,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 550 Invalid, 7 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 114.19ms Time] [2021-11-12 22:28:20,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:28:20,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:28:20,531 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) [2021-11-12 22:28:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:28:20,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-11-12 22:28:20,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:20,532 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:28:20,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:28:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:28:20,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:28:20,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:28:20,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-12 22:28:20,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-12 22:28:20,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:21,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:28:21,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 22:28:21,447 INFO L858 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2021-11-12 22:28:21,447 INFO L858 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-11-12 22:28:21,447 INFO L858 garLoopResultBuilder]: For program point L217-2(line 217) no Hoare annotation was computed. [2021-11-12 22:28:21,448 INFO L861 garLoopResultBuilder]: At program point L209(lines 209 225) the Hoare annotation is: true [2021-11-12 22:28:21,448 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_89ENTRY(lines 193 248) the Hoare annotation is: true [2021-11-12 22:28:21,448 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_89EXIT(lines 193 248) no Hoare annotation was computed. [2021-11-12 22:28:21,448 INFO L858 garLoopResultBuilder]: For program point L234(line 234) no Hoare annotation was computed. [2021-11-12 22:28:21,448 INFO L858 garLoopResultBuilder]: For program point L234-2(line 234) no Hoare annotation was computed. [2021-11-12 22:28:21,448 INFO L858 garLoopResultBuilder]: For program point L234-3(line 234) no Hoare annotation was computed. [2021-11-12 22:28:21,448 INFO L858 garLoopResultBuilder]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2021-11-12 22:28:21,448 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2021-11-12 22:28:21,449 INFO L861 garLoopResultBuilder]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2021-11-12 22:28:21,449 INFO L858 garLoopResultBuilder]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2021-11-12 22:28:21,449 INFO L858 garLoopResultBuilder]: For program point L218(line 218) no Hoare annotation was computed. [2021-11-12 22:28:21,449 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-12 22:28:21,449 INFO L858 garLoopResultBuilder]: For program point L214-2(line 214) no Hoare annotation was computed. [2021-11-12 22:28:21,449 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 208) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 208) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_89FINAL(lines 193 248) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 201) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-12 22:28:21,450 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-12 22:28:21,451 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 241) no Hoare annotation was computed. [2021-11-12 22:28:21,451 INFO L858 garLoopResultBuilder]: For program point L236-1(lines 234 246) no Hoare annotation was computed. [2021-11-12 22:28:21,451 INFO L858 garLoopResultBuilder]: For program point L220(line 220) no Hoare annotation was computed. [2021-11-12 22:28:21,451 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-11-12 22:28:21,451 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-12 22:28:21,452 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 207) no Hoare annotation was computed. [2021-11-12 22:28:21,452 INFO L858 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2021-11-12 22:28:21,452 INFO L858 garLoopResultBuilder]: For program point L461(lines 461 464) no Hoare annotation was computed. [2021-11-12 22:28:21,452 INFO L854 garLoopResultBuilder]: At program point L461-2(lines 459 466) the Hoare annotation is: (and (or (not (= (_ bv2 32) |Id_MCDC_95_~Id_MCDC_93#1|)) (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv2 32))) (= |Id_MCDC_95___VERIFIER_assert_~Id_MCDC_103#1| (_ bv1 32)) |Id_MCDC_95_#t~short30#1|) [2021-11-12 22:28:21,452 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 295) no Hoare annotation was computed. [2021-11-12 22:28:21,452 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 269) no Hoare annotation was computed. [2021-11-12 22:28:21,452 INFO L858 garLoopResultBuilder]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2021-11-12 22:28:21,453 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 287) no Hoare annotation was computed. [2021-11-12 22:28:21,453 INFO L854 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: (and (or (not (= (_ bv2 32) |Id_MCDC_95_~Id_MCDC_93#1|)) (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv2 32))) (or (= (_ bv4 32) |Id_MCDC_95_~Id_MCDC_93#1|) (not (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv4 32))))) [2021-11-12 22:28:21,453 INFO L858 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2021-11-12 22:28:21,453 INFO L854 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: (and (or (not (= (_ bv2 32) |Id_MCDC_95_~Id_MCDC_93#1|)) (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv2 32))) (or (= (_ bv4 32) |Id_MCDC_95_~Id_MCDC_93#1|) (not (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv4 32))))) [2021-11-12 22:28:21,453 INFO L858 garLoopResultBuilder]: For program point L297-1(line 297) no Hoare annotation was computed. [2021-11-12 22:28:21,454 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_95ENTRY(lines 280 299) the Hoare annotation is: true [2021-11-12 22:28:21,454 INFO L858 garLoopResultBuilder]: For program point L463(line 463) no Hoare annotation was computed. [2021-11-12 22:28:21,454 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2021-11-12 22:28:21,454 INFO L858 garLoopResultBuilder]: For program point L298(line 298) no Hoare annotation was computed. [2021-11-12 22:28:21,454 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2021-11-12 22:28:21,454 INFO L858 garLoopResultBuilder]: For program point L298-2(line 298) no Hoare annotation was computed. [2021-11-12 22:28:21,455 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 269) no Hoare annotation was computed. [2021-11-12 22:28:21,455 INFO L854 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: (and (not (= (_ bv2 32) |Id_MCDC_95_~Id_MCDC_93#1|)) (or (= (_ bv4 32) |Id_MCDC_95_~Id_MCDC_93#1|) (not (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv4 32))))) [2021-11-12 22:28:21,455 INFO L858 garLoopResultBuilder]: For program point L290-1(line 290) no Hoare annotation was computed. [2021-11-12 22:28:21,455 INFO L854 garLoopResultBuilder]: At program point L278(lines 249 279) the Hoare annotation is: (and (or (not (= (_ bv2 32) |Id_MCDC_95_~Id_MCDC_93#1|)) (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv2 32))) (or (= (_ bv4 32) |Id_MCDC_95_~Id_MCDC_93#1|) (not (= |Id_MCDC_95_#in~Id_MCDC_93#1| (_ bv4 32))))) [2021-11-12 22:28:21,456 INFO L858 garLoopResultBuilder]: For program point L270-1(lines 250 279) no Hoare annotation was computed. [2021-11-12 22:28:21,456 INFO L858 garLoopResultBuilder]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2021-11-12 22:28:21,456 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2021-11-12 22:28:21,456 INFO L858 garLoopResultBuilder]: For program point L316(line 316) no Hoare annotation was computed. [2021-11-12 22:28:21,456 INFO L858 garLoopResultBuilder]: For program point L316-2(line 316) no Hoare annotation was computed. [2021-11-12 22:28:21,456 INFO L858 garLoopResultBuilder]: For program point L316-3(line 316) no Hoare annotation was computed. [2021-11-12 22:28:21,457 INFO L858 garLoopResultBuilder]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2021-11-12 22:28:21,457 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2021-11-12 22:28:21,457 INFO L854 garLoopResultBuilder]: At program point L308-3(lines 308 315) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,457 INFO L858 garLoopResultBuilder]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2021-11-12 22:28:21,457 INFO L858 garLoopResultBuilder]: For program point L358-2(lines 358 396) no Hoare annotation was computed. [2021-11-12 22:28:21,458 INFO L854 garLoopResultBuilder]: At program point L358-3(lines 358 396) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,458 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 22:28:21,458 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 22:28:21,458 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-12 22:28:21,458 INFO L858 garLoopResultBuilder]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2021-11-12 22:28:21,459 INFO L861 garLoopResultBuilder]: At program point L425(lines 420 426) the Hoare annotation is: true [2021-11-12 22:28:21,459 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-12 22:28:21,459 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 323) no Hoare annotation was computed. [2021-11-12 22:28:21,459 INFO L858 garLoopResultBuilder]: For program point L318-1(lines 316 328) no Hoare annotation was computed. [2021-11-12 22:28:21,459 INFO L858 garLoopResultBuilder]: For program point L376-2(lines 376 393) no Hoare annotation was computed. [2021-11-12 22:28:21,460 INFO L854 garLoopResultBuilder]: At program point L376-3(lines 376 393) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,460 INFO L858 garLoopResultBuilder]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2021-11-12 22:28:21,460 INFO L861 garLoopResultBuilder]: At program point L418(lines 400 419) the Hoare annotation is: true [2021-11-12 22:28:21,460 INFO L858 garLoopResultBuilder]: For program point L352-2(lines 352 355) no Hoare annotation was computed. [2021-11-12 22:28:21,460 INFO L854 garLoopResultBuilder]: At program point L352-3(lines 352 355) the Hoare annotation is: (and (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) (= (_ bv6144 32) |ULTIMATE.start_Id_MCDC_97_~Id_MCDC_123~0#1|)) [2021-11-12 22:28:21,460 INFO L858 garLoopResultBuilder]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2021-11-12 22:28:21,461 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 314) no Hoare annotation was computed. [2021-11-12 22:28:21,461 INFO L861 garLoopResultBuilder]: At program point L427(lines 427 458) the Hoare annotation is: true [2021-11-12 22:28:21,461 INFO L854 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,461 INFO L858 garLoopResultBuilder]: For program point L361-1(lines 361 364) no Hoare annotation was computed. [2021-11-12 22:28:21,461 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 455) no Hoare annotation was computed. [2021-11-12 22:28:21,462 INFO L854 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,462 INFO L858 garLoopResultBuilder]: For program point L378-1(lines 378 381) no Hoare annotation was computed. [2021-11-12 22:28:21,462 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 307) no Hoare annotation was computed. [2021-11-12 22:28:21,462 INFO L854 garLoopResultBuilder]: At program point L329(lines 300 330) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,462 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 22:28:21,463 INFO L854 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,463 INFO L858 garLoopResultBuilder]: For program point L371-1(lines 371 374) no Hoare annotation was computed. [2021-11-12 22:28:21,463 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 22:28:21,463 INFO L858 garLoopResultBuilder]: For program point L389(lines 389 392) no Hoare annotation was computed. [2021-11-12 22:28:21,463 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 397) no Hoare annotation was computed. [2021-11-12 22:28:21,464 INFO L858 garLoopResultBuilder]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2021-11-12 22:28:21,464 INFO L861 garLoopResultBuilder]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2021-11-12 22:28:21,464 INFO L861 garLoopResultBuilder]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2021-11-12 22:28:21,464 INFO L854 garLoopResultBuilder]: At program point L398(lines 331 399) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,464 INFO L854 garLoopResultBuilder]: At program point L365(line 365) the Hoare annotation is: (= |ULTIMATE.start_Id_MCDC_99_~Id_MCDC_140~0#1| (_ bv0 32)) [2021-11-12 22:28:21,464 INFO L858 garLoopResultBuilder]: For program point L365-1(lines 365 368) no Hoare annotation was computed. [2021-11-12 22:28:21,465 INFO L858 garLoopResultBuilder]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2021-11-12 22:28:21,465 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-11-12 22:28:21,465 INFO L858 garLoopResultBuilder]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2021-11-12 22:28:21,465 INFO L861 garLoopResultBuilder]: At program point avoid_zeroENTRY(lines 9 15) the Hoare annotation is: true [2021-11-12 22:28:21,469 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:21,471 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:28:21,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:28:21 BoogieIcfgContainer [2021-11-12 22:28:21,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:28:21,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:28:21,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:28:21,491 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:28:21,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:08" (3/4) ... [2021-11-12 22:28:21,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:28:21,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2021-11-12 22:28:21,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2021-11-12 22:28:21,505 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2021-11-12 22:28:21,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-11-12 22:28:21,521 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-12 22:28:21,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 22:28:21,524 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 22:28:21,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:28:21,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:28:21,565 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(2bv32 == Id_MCDC_93) || \old(Id_MCDC_93) == 2bv32) && (4bv32 == Id_MCDC_93 || !(\old(Id_MCDC_93) == 4bv32)) [2021-11-12 22:28:21,567 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(2bv32 == Id_MCDC_93) || \old(Id_MCDC_93) == 2bv32) && Id_MCDC_103 == 1bv32) && aux-( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295-aux [2021-11-12 22:28:21,660 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:28:21,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:28:21,661 INFO L158 Benchmark]: Toolchain (without parser) took 15945.87ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 44.9MB in the beginning and 37.5MB in the end (delta: 7.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,661 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 79.7MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:28:21,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 870.76ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 50.0MB in the end (delta: -5.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.66ms. Allocated memory is still 79.7MB. Free memory was 49.8MB in the beginning and 46.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,662 INFO L158 Benchmark]: Boogie Preprocessor took 135.11ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 42.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,663 INFO L158 Benchmark]: RCFGBuilder took 1653.58ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 42.7MB in the beginning and 79.5MB in the end (delta: -36.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,664 INFO L158 Benchmark]: TraceAbstraction took 12975.88ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 49.1MB in the end (delta: 29.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,665 INFO L158 Benchmark]: Witness Printer took 169.14ms. Allocated memory is still 102.8MB. Free memory was 49.1MB in the beginning and 37.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:28:21,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 79.7MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 870.76ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 50.0MB in the end (delta: -5.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.66ms. Allocated memory is still 79.7MB. Free memory was 49.8MB in the beginning and 46.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 135.11ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 42.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1653.58ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 42.7MB in the beginning and 79.5MB in the end (delta: -36.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12975.88ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 49.1MB in the end (delta: 29.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Witness Printer took 169.14ms. Allocated memory is still 102.8MB. Free memory was 49.1MB in the beginning and 37.5MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. 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: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 535.66ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 2447 SdHoareTripleChecker+Invalid, 430.83ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1404 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 1043 mSDtfsCounter, 74 mSolverCounterSat, 23.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 991 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=5, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 103 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 177 PreInvPairs, 216 NumberOfFragments, 121 HoareAnnotationTreeSize, 177 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 508 NumberOfCodeBlocks, 508 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 988 ConstructedInterpolants, 0 QuantifiedInterpolants, 1272 SizeOfPredicates, 23 NumberOfNonLiveVariables, 3590 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 28 InterpolantComputations, 12 PerfectInterpolantSequences, 82/154 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 1 specifications checked. All of them hold - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: Id_MCDC_140 == 0bv32 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: (!(2bv32 == Id_MCDC_93) || \old(Id_MCDC_93) == 2bv32) && (4bv32 == Id_MCDC_93 || !(\old(Id_MCDC_93) == 4bv32)) - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: Id_MCDC_140 == 0bv32 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: Id_MCDC_140 == 0bv32 && 6144bv32 == Id_MCDC_123 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: Id_MCDC_140 == 0bv32 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: Id_MCDC_140 == 0bv32 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: Id_MCDC_140 == 0bv32 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: ((!(2bv32 == Id_MCDC_93) || \old(Id_MCDC_93) == 2bv32) && Id_MCDC_103 == 1bv32) && aux-( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295-aux RESULT: Ultimate proved your program to be correct! [2021-11-12 22:28:21,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22c8377-43af-47f9-a00d-1ac3c35b260d/bin/utaipan-vmNK8stdcF/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