./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8 --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 77902a9f57c297a8e1fc2f1cd5cfc51f597104fb ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8 --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 77902a9f57c297a8e1fc2f1cd5cfc51f597104fb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:44:14,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:14,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:14,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:14,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:14,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:14,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:14,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:14,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:14,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:14,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:14,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:14,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:14,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:14,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:14,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:14,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:14,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:14,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:14,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:14,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:14,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:14,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:14,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:14,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:14,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:14,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:14,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:14,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:14,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:14,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:14,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:14,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:14,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:14,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:14,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:14,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:14,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:14,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:14,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:14,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:14,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:44:14,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:14,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:14,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:14,992 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:14,992 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:14,992 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:14,993 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:44:14,993 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:14,993 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:14,993 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:44:14,993 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:44:14,994 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:14,994 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:44:14,994 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:44:14,994 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:44:14,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:14,995 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:14,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:44:14,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:14,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:14,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:14,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:14,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:14,997 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:14,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:14,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:14,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:14,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:14,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:14,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:14,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:14,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:14,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:14,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:14,999 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:44:15,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:44:15,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:15,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:15,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:15,001 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_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77902a9f57c297a8e1fc2f1cd5cfc51f597104fb [2021-10-13 06:44:15,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:15,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:15,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:15,266 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:15,266 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:15,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-13 06:44:15,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/716dfc41e/d915fba3665f41169985c32bf68bc961/FLAG30fe46e38 [2021-10-13 06:44:15,859 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:15,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-13 06:44:15,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/716dfc41e/d915fba3665f41169985c32bf68bc961/FLAG30fe46e38 [2021-10-13 06:44:16,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/716dfc41e/d915fba3665f41169985c32bf68bc961 [2021-10-13 06:44:16,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:16,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:16,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:16,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:16,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:16,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:16" (1/1) ... [2021-10-13 06:44:16,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd5ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:16, skipping insertion in model container [2021-10-13 06:44:16,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:16" (1/1) ... [2021-10-13 06:44:16,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:16,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:16,638 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_eb33402c-3a20-4984-8079-517c2ca6014b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-13 06:44:16,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:16,652 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 06:44:16,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c65ae5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:16, skipping insertion in model container [2021-10-13 06:44:16,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:16,654 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 06:44:16,656 INFO L168 Benchmark]: Toolchain (without parser) took 463.34 ms. Allocated memory is still 130.0 MB. Free memory was 95.1 MB in the beginning and 103.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:16,657 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 56.7 MB in the beginning and 56.6 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:16,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.56 ms. Allocated memory is still 130.0 MB. Free memory was 95.1 MB in the beginning and 103.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:16,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 56.7 MB in the beginning and 56.6 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 460.56 ms. Allocated memory is still 130.0 MB. Free memory was 95.1 MB in the beginning and 103.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 635]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:44:18,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:18,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:18,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:18,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:18,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:19,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:19,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:19,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:19,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:19,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:19,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:19,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:19,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:19,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:19,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:19,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:19,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:19,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:19,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:19,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:19,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:19,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:19,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:19,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:19,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:19,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:19,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:19,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:19,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:19,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:19,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:19,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:19,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:19,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:19,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:19,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:19,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:19,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:19,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:19,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:19,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:44:19,105 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:19,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:19,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:19,106 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:19,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:19,106 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:19,107 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:19,107 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:19,107 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:19,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:19,108 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:19,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:19,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:19,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:19,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:19,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:19,110 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:19,110 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:44:19,110 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:44:19,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:19,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:19,111 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:19,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:19,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:19,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:44:19,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:19,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:19,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:19,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:19,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:19,116 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:44:19,116 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:44:19,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:19,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:19,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:19,117 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_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77902a9f57c297a8e1fc2f1cd5cfc51f597104fb [2021-10-13 06:44:19,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:19,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:19,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:19,506 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:19,507 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:19,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-13 06:44:19,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/d12127e7f/485222fb805541b89ae919c54b6ae808/FLAG8f11265ee [2021-10-13 06:44:20,258 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:20,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-13 06:44:20,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/d12127e7f/485222fb805541b89ae919c54b6ae808/FLAG8f11265ee [2021-10-13 06:44:20,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/data/d12127e7f/485222fb805541b89ae919c54b6ae808 [2021-10-13 06:44:20,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:20,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:20,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:20,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:20,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:20,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f1dab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:20, skipping insertion in model container [2021-10-13 06:44:20,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:20" (1/1) ... [2021-10-13 06:44:20,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:20,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:20,970 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_eb33402c-3a20-4984-8079-517c2ca6014b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-13 06:44:20,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:21,002 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 06:44:21,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:21,065 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_eb33402c-3a20-4984-8079-517c2ca6014b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-13 06:44:21,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:21,071 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:21,115 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_eb33402c-3a20-4984-8079-517c2ca6014b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-13 06:44:21,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:21,172 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:21,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21 WrapperNode [2021-10-13 06:44:21,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:21,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:21,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:21,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:21,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:21,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:21,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:21,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:21,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:21,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:21,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:21,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:21,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (1/1) ... [2021-10-13 06:44:21,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:21,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:21,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 06:44:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 06:44:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 06:44:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 06:44:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 06:44:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 06:44:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:44:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:22,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:44:22,059 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 06:44:22,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:22 BoogieIcfgContainer [2021-10-13 06:44:22,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:44:22,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:44:22,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:44:22,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:44:22,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:20" (1/3) ... [2021-10-13 06:44:22,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1706676c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:22, skipping insertion in model container [2021-10-13 06:44:22,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:21" (2/3) ... [2021-10-13 06:44:22,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1706676c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:22, skipping insertion in model container [2021-10-13 06:44:22,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:22" (3/3) ... [2021-10-13 06:44:22,072 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2021-10-13 06:44:22,078 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:44:22,078 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:44:22,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:44:22,149 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, mConcurrency=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 [2021-10-13 06:44:22,149 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:44:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 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) [2021-10-13 06:44:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 06:44:22,184 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:22,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:22,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:22,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:22,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1191041087, now seen corresponding path program 1 times [2021-10-13 06:44:22,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:22,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537793913] [2021-10-13 06:44:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:22,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:22,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:22,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:22,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:44:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:22,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:44:22,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:22,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:22,418 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:22,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537793913] [2021-10-13 06:44:22,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537793913] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:22,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:22,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:44:22,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901930471] [2021-10-13 06:44:22,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:44:22,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:22,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:44:22,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:44:22,452 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:22,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:22,467 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-10-13 06:44:22,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:44:22,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 06:44:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:22,477 INFO L225 Difference]: With dead ends: 45 [2021-10-13 06:44:22,477 INFO L226 Difference]: Without dead ends: 21 [2021-10-13 06:44:22,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:44:22,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-13 06:44:22,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-13 06:44:22,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-10-13 06:44:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-13 06:44:22,512 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2021-10-13 06:44:22,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:22,512 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-13 06:44:22,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:22,513 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-13 06:44:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 06:44:22,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:22,514 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:22,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:22,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:22,720 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:22,725 INFO L82 PathProgramCache]: Analyzing trace with hash -942277654, now seen corresponding path program 1 times [2021-10-13 06:44:22,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:22,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325926186] [2021-10-13 06:44:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:22,730 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:22,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:22,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:22,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:44:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:22,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 06:44:22,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:22,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:22,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:22,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325926186] [2021-10-13 06:44:22,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325926186] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:22,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:22,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 06:44:22,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977922829] [2021-10-13 06:44:22,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:44:22,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:22,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:44:22,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:22,986 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:23,057 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-10-13 06:44:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:44:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 06:44:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:23,059 INFO L225 Difference]: With dead ends: 41 [2021-10-13 06:44:23,060 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 06:44:23,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:44:23,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 06:44:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-10-13 06:44:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2021-10-13 06:44:23,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-10-13 06:44:23,066 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-10-13 06:44:23,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:23,066 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-13 06:44:23,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-13 06:44:23,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 06:44:23,068 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:23,068 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:23,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:23,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:23,281 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:23,282 INFO L82 PathProgramCache]: Analyzing trace with hash 239429152, now seen corresponding path program 1 times [2021-10-13 06:44:23,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:23,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461536953] [2021-10-13 06:44:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:23,283 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:23,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:23,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:44:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:23,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 06:44:23,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:23,496 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:44:23,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-10-13 06:44:23,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-13 06:44:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:23,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:23,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:23,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461536953] [2021-10-13 06:44:23,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461536953] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:23,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:23,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 06:44:23,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927942930] [2021-10-13 06:44:23,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 06:44:23,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:23,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 06:44:23,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:44:23,696 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:24,986 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2021-10-13 06:44:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:44:24,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 06:44:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:24,989 INFO L225 Difference]: With dead ends: 44 [2021-10-13 06:44:24,989 INFO L226 Difference]: Without dead ends: 23 [2021-10-13 06:44:24,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 80.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 06:44:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-13 06:44:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2021-10-13 06:44:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-10-13 06:44:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-13 06:44:24,994 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2021-10-13 06:44:24,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:24,994 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-13 06:44:24,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:24,994 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-13 06:44:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 06:44:24,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:24,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:25,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:25,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:25,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:25,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1232200096, now seen corresponding path program 1 times [2021-10-13 06:44:25,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:25,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053518643] [2021-10-13 06:44:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:25,217 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:25,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:25,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:25,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:44:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:25,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 06:44:25,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:25,482 INFO L354 Elim1Store]: treesize reduction 78, result has 28.4 percent of original size [2021-10-13 06:44:25,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2021-10-13 06:44:25,846 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 06:44:25,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-13 06:44:29,081 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-10-13 06:44:29,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-10-13 06:44:29,402 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-10-13 06:44:29,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-10-13 06:44:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:29,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:29,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12818 treesize of output 12690 [2021-10-13 06:44:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:33,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:33,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053518643] [2021-10-13 06:44:33,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053518643] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:33,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:33,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-13 06:44:33,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883859801] [2021-10-13 06:44:33,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 06:44:33,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:33,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 06:44:33,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:44:33,331 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-13 06:44:34,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:34,052 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-13 06:44:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 06:44:34,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 06:44:34,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:34,055 INFO L225 Difference]: With dead ends: 31 [2021-10-13 06:44:34,055 INFO L226 Difference]: Without dead ends: 26 [2021-10-13 06:44:34,055 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 386.1ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-13 06:44:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-13 06:44:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-10-13 06:44:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-10-13 06:44:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-10-13 06:44:34,060 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2021-10-13 06:44:34,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:34,061 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-10-13 06:44:34,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-10-13 06:44:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-13 06:44:34,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 06:44:34,062 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:34,062 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:34,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:34,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:34,276 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:34,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1233808810, now seen corresponding path program 1 times [2021-10-13 06:44:34,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:34,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755028642] [2021-10-13 06:44:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:34,278 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:34,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:34,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:34,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:44:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:44:34,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:44:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:44:34,699 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 06:44:34,700 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:44:34,701 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:34,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:34,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:34,909 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:44:34,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:44:34 BoogieIcfgContainer [2021-10-13 06:44:34,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:44:34,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:44:34,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:44:34,992 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:44:34,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:22" (3/4) ... [2021-10-13 06:44:34,994 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 06:44:35,062 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:44:35,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:44:35,064 INFO L168 Benchmark]: Toolchain (without parser) took 14517.60 ms. Allocated memory was 73.4 MB in the beginning and 161.5 MB in the end (delta: 88.1 MB). Free memory was 53.4 MB in the beginning and 112.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,065 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:35,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.89 ms. Allocated memory is still 73.4 MB. Free memory was 53.2 MB in the beginning and 41.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 73.4 MB. Free memory was 41.9 MB in the beginning and 39.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,068 INFO L168 Benchmark]: Boogie Preprocessor took 51.48 ms. Allocated memory is still 73.4 MB. Free memory was 39.5 MB in the beginning and 37.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,068 INFO L168 Benchmark]: RCFGBuilder took 767.29 ms. Allocated memory is still 73.4 MB. Free memory was 37.8 MB in the beginning and 45.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,069 INFO L168 Benchmark]: TraceAbstraction took 12927.42 ms. Allocated memory was 73.4 MB in the beginning and 161.5 MB in the end (delta: 88.1 MB). Free memory was 44.7 MB in the beginning and 116.0 MB in the end (delta: -71.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,070 INFO L168 Benchmark]: Witness Printer took 71.61 ms. Allocated memory is still 161.5 MB. Free memory was 116.0 MB in the beginning and 112.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:35,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 625.89 ms. Allocated memory is still 73.4 MB. Free memory was 53.2 MB in the beginning and 41.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 73.4 MB. Free memory was 41.9 MB in the beginning and 39.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.48 ms. Allocated memory is still 73.4 MB. Free memory was 39.5 MB in the beginning and 37.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 767.29 ms. Allocated memory is still 73.4 MB. Free memory was 37.8 MB in the beginning and 45.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12927.42 ms. Allocated memory was 73.4 MB in the beginning and 161.5 MB in the end (delta: 88.1 MB). Free memory was 44.7 MB in the beginning and 116.0 MB in the end (delta: -71.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 71.61 ms. Allocated memory is still 161.5 MB. Free memory was 116.0 MB in the beginning and 112.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 667]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={-2147483648:0}] [L665] int j = __VERIFIER_nondet_int(); [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-2147483648:0}] [L652] COND FALSE !(&m->list != (s)) VAL [s1={-2147483648:0}] [L657] return 0; VAL [s1={-2147483648:0}] [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [s1={-2147483648:0}] [L578] return ptr; VAL [s1={-2147483648:0}] [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L605] head->next [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new VAL [s1={-2147483648:0}] [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-2147483648:0}] [L652] COND TRUE &m->list != (s) [L653] EXPR m->e VAL [s1={-2147483648:0}] [L653] COND TRUE m->e == e [L654] return 1; VAL [s1={-2147483648:0}] [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] reach_error() VAL [s1={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12769.6ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 26.2ms, AutomataDifference: 2140.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 82 SDtfs, 132 SDslu, 88 SDs, 0 SdLazy, 54 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1784.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 495.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 64.2ms SsaConstructionTime, 289.4ms SatisfiabilityAnalysisTime, 8542.3ms InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 6 QuantifiedInterpolants, 514 SizeOfPredicates, 48 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 06:44:35,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb33402c-3a20-4984-8079-517c2ca6014b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...