./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG --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 ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 ............................................................................................................................................ 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG --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 ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:20:25,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:20:25,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:20:25,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:20:25,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:20:25,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:20:25,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:20:25,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:20:25,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:20:25,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:20:25,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:20:26,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:20:26,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:20:26,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:20:26,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:20:26,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:20:26,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:20:26,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:20:26,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:20:26,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:20:26,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:20:26,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:20:26,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:20:26,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:20:26,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:20:26,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:20:26,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:20:26,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:20:26,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:20:26,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:20:26,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:20:26,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:20:26,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:20:26,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:20:26,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:20:26,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:20:26,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:20:26,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:20:26,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:20:26,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:20:26,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:20:26,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:20:26,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:20:26,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:20:26,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:20:26,135 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:20:26,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:20:26,136 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:20:26,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:20:26,136 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:20:26,145 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:20:26,145 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:20:26,147 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:20:26,147 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:20:26,148 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:20:26,148 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:20:26,148 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:20:26,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:20:26,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:20:26,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:20:26,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:20:26,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:20:26,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:20:26,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:20:26,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:20:26,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:20:26,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:20:26,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:20:26,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:20:26,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:20:26,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:20:26,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:20:26,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:20:26,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:20:26,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:20:26,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:20:26,158 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:20:26,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:20:26,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:20:26,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:20:26,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:20:26,160 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 [2021-10-29 05:20:26,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:20:26,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:20:26,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:20:26,555 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:20:26,556 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:20:26,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-29 05:20:26,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/144790dde/5b286fb6406e4590ab9641527d59dc79/FLAG7d456581f [2021-10-29 05:20:27,277 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:20:27,281 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-29 05:20:27,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/144790dde/5b286fb6406e4590ab9641527d59dc79/FLAG7d456581f [2021-10-29 05:20:27,585 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/144790dde/5b286fb6406e4590ab9641527d59dc79 [2021-10-29 05:20:27,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:20:27,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:20:27,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:20:27,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:20:27,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:20:27,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:20:27" (1/1) ... [2021-10-29 05:20:27,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e1c3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:27, skipping insertion in model container [2021-10-29 05:20:27,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:20:27" (1/1) ... [2021-10-29 05:20:27,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:20:27,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:20:27,886 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-29 05:20:27,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:20:27,933 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) [2021-10-29 05:20:27,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ba24ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:27, skipping insertion in model container [2021-10-29 05:20:27,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:20:27,935 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:20:27,939 INFO L168 Benchmark]: Toolchain (without parser) took 345.25 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 90.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:20:27,940 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 92.3 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:20:27,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.58 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 90.2 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:20:27,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 92.3 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.58 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 90.2 MB in the end (delta: -30.6 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: 25]: 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-b2eff8b [2021-10-29 05:20:30,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:20:30,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:20:30,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:20:30,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:20:30,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:20:30,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:20:30,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:20:30,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:20:30,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:20:30,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:20:30,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:20:30,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:20:30,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:20:30,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:20:30,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:20:30,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:20:30,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:20:30,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:20:30,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:20:30,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:20:30,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:20:30,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:20:30,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:20:30,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:20:30,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:20:30,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:20:30,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:20:30,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:20:30,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:20:30,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:20:30,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:20:30,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:20:30,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:20:30,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:20:30,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:20:30,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:20:30,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:20:30,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:20:30,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:20:30,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:20:30,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:20:31,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:20:31,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:20:31,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:20:31,058 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:20:31,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:20:31,059 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:20:31,059 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:20:31,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:20:31,061 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:20:31,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:20:31,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:20:31,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:20:31,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:20:31,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:20:31,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:20:31,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:20:31,067 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:20:31,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:20:31,067 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:20:31,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:20:31,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:20:31,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:20:31,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:20:31,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:20:31,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:20:31,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:20:31,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:20:31,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:20:31,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:20:31,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:20:31,071 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:20:31,071 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:31,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:20:31,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:20:31,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:20:31,072 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 [2021-10-29 05:20:31,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:20:31,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:20:31,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:20:31,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:20:31,596 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:20:31,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-29 05:20:31,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/7bddc6d86/a63a9195f4bb45b488fc063e20bbd926/FLAG0f714fe9e [2021-10-29 05:20:32,376 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:20:32,377 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-29 05:20:32,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/7bddc6d86/a63a9195f4bb45b488fc063e20bbd926/FLAG0f714fe9e [2021-10-29 05:20:32,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/data/7bddc6d86/a63a9195f4bb45b488fc063e20bbd926 [2021-10-29 05:20:32,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:20:32,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:20:32,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:20:32,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:20:32,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:20:32,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:20:32" (1/1) ... [2021-10-29 05:20:32,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703ef48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:32, skipping insertion in model container [2021-10-29 05:20:32,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:20:32" (1/1) ... [2021-10-29 05:20:32,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:20:32,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:20:32,956 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-29 05:20:32,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:20:33,006 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:20:33,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:20:33,016 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-29 05:20:33,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:20:33,028 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:20:33,060 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_d9ae4e80-8106-4d65-bed7-2a85425ffae4/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-29 05:20:33,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:20:33,126 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:20:33,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33 WrapperNode [2021-10-29 05:20:33,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:20:33,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:20:33,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:20:33,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:20:33,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:20:33,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:20:33,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:20:33,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:20:33,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:20:33,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:20:33,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:20:33,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:20:33,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (1/1) ... [2021-10-29 05:20:33,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:20:33,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:20:33,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:20:33,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:20:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 05:20:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:20:33,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 05:20:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:20:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:20:33,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:20:33,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:20:33,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:20:33,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:20:33,789 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-29 05:20:33,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:20:33 BoogieIcfgContainer [2021-10-29 05:20:33,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:20:33,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:20:33,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:20:33,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:20:33,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:20:32" (1/3) ... [2021-10-29 05:20:33,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cee79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:20:33, skipping insertion in model container [2021-10-29 05:20:33,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:20:33" (2/3) ... [2021-10-29 05:20:33,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cee79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:20:33, skipping insertion in model container [2021-10-29 05:20:33,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:20:33" (3/3) ... [2021-10-29 05:20:33,803 INFO L111 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2021-10-29 05:20:33,811 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:20:33,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:20:33,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:20:33,931 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:20:33,931 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:20:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-29 05:20:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:20:33,958 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:33,959 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:33,960 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2060710478, now seen corresponding path program 1 times [2021-10-29 05:20:33,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:33,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297571906] [2021-10-29 05:20:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:33,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:33,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:33,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:33,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:20:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:34,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:20:34,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:34,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:34,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:34,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297571906] [2021-10-29 05:20:34,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297571906] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:20:34,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:20:34,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:20:34,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718910207] [2021-10-29 05:20:34,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:20:34,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:34,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:20:34,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:20:34,331 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:20:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:20:34,353 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-10-29 05:20:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:20:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:20:34,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:20:34,365 INFO L225 Difference]: With dead ends: 36 [2021-10-29 05:20:34,366 INFO L226 Difference]: Without dead ends: 16 [2021-10-29 05:20:34,369 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:20:34,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-29 05:20:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-29 05:20:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2021-10-29 05:20:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-29 05:20:34,409 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2021-10-29 05:20:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:20:34,410 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-29 05:20:34,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:20:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-29 05:20:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:20:34,412 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:34,413 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:34,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:34,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:20:34,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:34,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1919336157, now seen corresponding path program 1 times [2021-10-29 05:20:34,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:34,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478682700] [2021-10-29 05:20:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:34,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:34,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:34,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:34,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:20:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:34,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:20:34,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:34,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:34,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:34,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478682700] [2021-10-29 05:20:34,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478682700] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:20:34,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:20:34,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:20:34,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291432741] [2021-10-29 05:20:34,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:20:34,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:34,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:20:34,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:20:34,923 INFO L87 Difference]: Start difference. First operand 16 states and 20 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) [2021-10-29 05:20:34,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:20:34,962 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-29 05:20:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:20:34,964 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 10 [2021-10-29 05:20:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:20:34,965 INFO L225 Difference]: With dead ends: 31 [2021-10-29 05:20:34,965 INFO L226 Difference]: Without dead ends: 19 [2021-10-29 05:20:34,966 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:20:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-29 05:20:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-29 05:20:34,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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) [2021-10-29 05:20:34,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-10-29 05:20:34,973 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2021-10-29 05:20:34,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:20:34,973 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-29 05:20:34,973 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) [2021-10-29 05:20:34,974 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-10-29 05:20:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:20:34,975 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:34,975 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:34,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:35,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:20:35,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:35,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1315497119, now seen corresponding path program 1 times [2021-10-29 05:20:35,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:35,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425799497] [2021-10-29 05:20:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:35,201 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:35,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:35,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:35,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:20:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:35,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:20:35,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:35,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:35,680 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:35,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425799497] [2021-10-29 05:20:35,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425799497] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:35,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [703553102] [2021-10-29 05:20:35,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:35,682 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:35,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:20:35,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:20:35,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-29 05:20:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:35,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:20:35,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:35,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:20:36,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [703553102] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:36,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439344916] [2021-10-29 05:20:36,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:36,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:20:36,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:20:36,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:20:36,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 05:20:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:36,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:20:36,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 05:20:36,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 05:20:36,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439344916] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:20:36,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-29 05:20:36,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-10-29 05:20:36,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528543799] [2021-10-29 05:20:36,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:20:36,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:36,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:20:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:20:36,337 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-29 05:20:36,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:20:36,392 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-10-29 05:20:36,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:20:36,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-10-29 05:20:36,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:20:36,394 INFO L225 Difference]: With dead ends: 39 [2021-10-29 05:20:36,395 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 05:20:36,395 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:20:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 05:20:36,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-10-29 05:20:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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) [2021-10-29 05:20:36,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-10-29 05:20:36,403 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2021-10-29 05:20:36,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:20:36,403 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-29 05:20:36,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-29 05:20:36,404 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-10-29 05:20:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:20:36,405 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:36,405 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:36,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:36,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:36,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-10-29 05:20:37,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:37,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2030845279, now seen corresponding path program 1 times [2021-10-29 05:20:37,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:37,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409382986] [2021-10-29 05:20:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:37,026 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:37,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:37,028 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:37,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:20:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:37,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:20:37,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:20:37,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:20:37,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:37,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409382986] [2021-10-29 05:20:37,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409382986] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:37,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [224123754] [2021-10-29 05:20:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:37,499 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:37,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:20:37,504 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:20:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-29 05:20:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:37,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:20:37,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:20:37,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:20:37,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [224123754] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:20:37,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:20:37,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-10-29 05:20:37,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719418313] [2021-10-29 05:20:37,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:20:37,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:37,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:20:37,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:20:37,823 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-10-29 05:20:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:20:37,851 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-10-29 05:20:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:20:37,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 20 [2021-10-29 05:20:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:20:37,859 INFO L225 Difference]: With dead ends: 42 [2021-10-29 05:20:37,860 INFO L226 Difference]: Without dead ends: 23 [2021-10-29 05:20:37,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:20:37,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-29 05:20:37,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-29 05:20:37,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2021-10-29 05:20:37,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-10-29 05:20:37,864 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2021-10-29 05:20:37,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:20:37,864 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-10-29 05:20:37,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2021-10-29 05:20:37,865 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-10-29 05:20:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:20:37,865 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:37,865 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:37,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:38,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:38,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:20:38,267 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:38,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2139127327, now seen corresponding path program 1 times [2021-10-29 05:20:38,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:38,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154477430] [2021-10-29 05:20:38,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:38,282 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:38,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:38,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:38,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:20:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:38,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:20:38,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:20:38,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:20:38,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:38,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154477430] [2021-10-29 05:20:38,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154477430] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:38,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1322755257] [2021-10-29 05:20:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:38,716 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:38,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:20:38,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:20:38,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-29 05:20:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:38,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:20:38,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:20:39,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:39,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:20:39,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1322755257] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:39,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524815588] [2021-10-29 05:20:39,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:39,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:20:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:20:39,132 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:20:39,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-29 05:20:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:39,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 05:20:39,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:20:39,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:42,043 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:20:42,043 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 40 treesize of output 40 [2021-10-29 05:20:42,078 INFO L354 Elim1Store]: treesize reduction 7, result has 41.7 percent of original size [2021-10-29 05:20:42,079 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 36 treesize of output 29 [2021-10-29 05:20:42,184 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:20:42,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524815588] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:42,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:20:42,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 8, 7] total 19 [2021-10-29 05:20:42,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026284273] [2021-10-29 05:20:42,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-29 05:20:42,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:42,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-29 05:20:42,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-10-29 05:20:42,189 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 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) [2021-10-29 05:20:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:20:43,055 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-10-29 05:20:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 05:20:43,056 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 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 20 [2021-10-29 05:20:43,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:20:43,057 INFO L225 Difference]: With dead ends: 54 [2021-10-29 05:20:43,057 INFO L226 Difference]: Without dead ends: 38 [2021-10-29 05:20:43,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-10-29 05:20:43,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-29 05:20:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2021-10-29 05:20:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 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) [2021-10-29 05:20:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-10-29 05:20:43,065 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 20 [2021-10-29 05:20:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:20:43,065 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-10-29 05:20:43,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 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) [2021-10-29 05:20:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-10-29 05:20:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:20:43,067 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:43,068 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:43,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:43,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-10-29 05:20:43,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:43,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:20:43,681 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:43,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:43,682 INFO L85 PathProgramCache]: Analyzing trace with hash 225697560, now seen corresponding path program 1 times [2021-10-29 05:20:43,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:43,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627376023] [2021-10-29 05:20:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:43,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:43,689 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:43,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:20:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:43,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:20:43,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 05:20:44,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 05:20:44,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:44,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627376023] [2021-10-29 05:20:44,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627376023] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:44,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2055992905] [2021-10-29 05:20:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:44,701 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:20:44,712 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:20:44,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-29 05:20:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:45,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:20:45,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 05:20:45,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 05:20:45,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2055992905] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:45,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766463886] [2021-10-29 05:20:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:20:45,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:20:45,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:20:45,420 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:20:45,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-29 05:20:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:20:45,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:20:45,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-29 05:20:45,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-29 05:20:46,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766463886] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:46,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:20:46,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 5, 5] total 22 [2021-10-29 05:20:46,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855694389] [2021-10-29 05:20:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 05:20:46,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:46,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 05:20:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-10-29 05:20:46,046 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-10-29 05:20:47,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:20:47,681 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2021-10-29 05:20:47,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-29 05:20:47,682 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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 33 [2021-10-29 05:20:47,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:20:47,683 INFO L225 Difference]: With dead ends: 112 [2021-10-29 05:20:47,683 INFO L226 Difference]: Without dead ends: 93 [2021-10-29 05:20:47,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2021-10-29 05:20:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-29 05:20:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 62. [2021-10-29 05:20:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.0491803278688525) internal successors, (64), 61 states have internal predecessors, (64), 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) [2021-10-29 05:20:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2021-10-29 05:20:47,696 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 33 [2021-10-29 05:20:47,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:20:47,697 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2021-10-29 05:20:47,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-10-29 05:20:47,697 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2021-10-29 05:20:47,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-29 05:20:47,699 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:20:47,700 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:20:47,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:47,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-29 05:20:48,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-29 05:20:48,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:20:48,318 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:20:48,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:20:48,318 INFO L85 PathProgramCache]: Analyzing trace with hash 616513032, now seen corresponding path program 2 times [2021-10-29 05:20:48,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:20:48,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675495992] [2021-10-29 05:20:48,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:20:48,319 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:20:48,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:20:48,320 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:20:48,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 05:20:48,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:20:48,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:20:48,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-29 05:20:48,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-29 05:20:49,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-29 05:20:50,633 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:20:50,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675495992] [2021-10-29 05:20:50,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675495992] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:50,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2000967395] [2021-10-29 05:20:50,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:20:50,634 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:20:50,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:20:50,647 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:20:50,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-29 05:20:51,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:20:51,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:20:51,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-29 05:20:51,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-29 05:20:51,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-29 05:20:51,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2000967395] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:51,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922608466] [2021-10-29 05:20:51,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:20:51,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:20:51,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:20:51,889 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:20:51,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-29 05:20:52,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:20:52,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:20:52,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:20:52,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:20:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-10-29 05:20:53,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:20:56,032 INFO L354 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2021-10-29 05:20:56,032 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 44 treesize of output 35 [2021-10-29 05:20:56,047 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-29 05:20:56,047 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 31 treesize of output 17 [2021-10-29 05:20:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-10-29 05:20:56,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922608466] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:20:56,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:20:56,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17, 17, 11, 10] total 49 [2021-10-29 05:20:56,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022907536] [2021-10-29 05:20:56,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-29 05:20:56,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:20:56,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-29 05:20:56,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1996, Unknown=0, NotChecked=0, Total=2352 [2021-10-29 05:20:56,330 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 49 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 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) [2021-10-29 05:21:05,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:05,226 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2021-10-29 05:21:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-29 05:21:05,227 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 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 61 [2021-10-29 05:21:05,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:05,228 INFO L225 Difference]: With dead ends: 134 [2021-10-29 05:21:05,229 INFO L226 Difference]: Without dead ends: 103 [2021-10-29 05:21:05,234 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=1199, Invalid=5941, Unknown=0, NotChecked=0, Total=7140 [2021-10-29 05:21:05,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-29 05:21:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2021-10-29 05:21:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.030612244897959) internal successors, (101), 98 states have internal predecessors, (101), 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) [2021-10-29 05:21:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 101 transitions. [2021-10-29 05:21:05,251 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 101 transitions. Word has length 61 [2021-10-29 05:21:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:05,252 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 101 transitions. [2021-10-29 05:21:05,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 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) [2021-10-29 05:21:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2021-10-29 05:21:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-29 05:21:05,262 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:05,263 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 6, 6, 6, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:05,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:05,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:05,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-29 05:21:05,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:21:05,877 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:21:05,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:05,877 INFO L85 PathProgramCache]: Analyzing trace with hash 333100921, now seen corresponding path program 3 times [2021-10-29 05:21:05,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:05,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631287047] [2021-10-29 05:21:05,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 05:21:05,880 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:05,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:05,912 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:05,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 05:21:06,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-29 05:21:06,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:21:06,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:21:06,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:07,693 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 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-29 05:21:08,491 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:08,492 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 31 treesize of output 31 [2021-10-29 05:21:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-29 05:21:09,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:10,306 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 72 treesize of output 64 [2021-10-29 05:21:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-29 05:21:32,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:32,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631287047] [2021-10-29 05:21:32,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631287047] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:21:32,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2144320053] [2021-10-29 05:21:32,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 05:21:32,989 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:21:32,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:21:32,990 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:21:32,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-29 05:21:34,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-29 05:21:34,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:21:34,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:21:34,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:35,257 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 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-29 05:21:35,838 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:35,839 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 31 treesize of output 31 [2021-10-29 05:21:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-29 05:21:36,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:36,669 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 72 treesize of output 64 [2021-10-29 05:21:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-29 05:21:56,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2144320053] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:21:56,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736240460] [2021-10-29 05:21:56,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 05:21:56,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:21:56,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:21:56,461 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:21:56,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-29 05:21:57,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-29 05:21:57,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:21:57,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 05:21:57,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:58,634 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 0 case distinctions, treesize of input 20 treesize of output 16 [2021-10-29 05:21:59,127 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:59,127 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 31 treesize of output 31 [2021-10-29 05:21:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-29 05:21:59,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:59,799 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 72 treesize of output 64 [2021-10-29 05:22:20,918 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-29 05:22:20,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736240460] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:22:20,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:22:20,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-10-29 05:22:20,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457339838] [2021-10-29 05:22:20,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-29 05:22:20,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:20,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-29 05:22:20,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-29 05:22:20,922 INFO L87 Difference]: Start difference. First operand 99 states and 101 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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) [2021-10-29 05:22:22,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:22,414 INFO L93 Difference]: Finished difference Result 99 states and 101 transitions. [2021-10-29 05:22:22,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 05:22:22,416 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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 98 [2021-10-29 05:22:22,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:22,417 INFO L225 Difference]: With dead ends: 99 [2021-10-29 05:22:22,417 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:22:22,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2021-10-29 05:22:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:22:22,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:22:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:22:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:22:22,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2021-10-29 05:22:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:22,420 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:22:22,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 16 states have internal predecessors, (37), 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) [2021-10-29 05:22:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:22:22,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:22:22,424 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:22:22,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-10-29 05:22:22,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:22,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:23,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:22:23,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:22:23,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:22:23,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:22:23,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:22:23,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:22:24,633 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2021-10-29 05:22:24,633 INFO L853 garLoopResultBuilder]: At program point L35-3(lines 35 41) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|)) (.cse0 (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#a~0.base|))) (let ((.cse2 (= (select .cse0 |ULTIMATE.start_main_~#a~0.offset|) (_ bv0 32))) (.cse3 (= |ULTIMATE.start_main_~#a~0.base| ULTIMATE.start_init_~a.base)) (.cse5 (= ULTIMATE.start_init_~a.offset |ULTIMATE.start_main_~#a~0.offset|)) (.cse6 (= (select .cse4 |ULTIMATE.start_main_~#a~0.offset|) (_ bv0 32))) (.cse7 (not (= (select .cse4 (bvadd (_ bv4294967292 32) (bvmul ULTIMATE.start_init_~i~0 (_ bv4 32)) |ULTIMATE.start_main_~#a~0.offset|)) (_ bv0 32)))) (.cse8 (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) ULTIMATE.start_init_~size)) (.cse9 (= (_ bv1000000 32) ULTIMATE.start_init_~size)) (.cse10 (exists ((ULTIMATE.start_init_~i~0 (_ BitVec 32))) (and (not (bvslt ULTIMATE.start_init_~i~0 (_ bv1000000 32))) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (bvadd (_ bv4294967292 32) (bvmul ULTIMATE.start_init_~i~0 (_ bv4 32)) |ULTIMATE.start_main_~#a~0.offset|)) (_ bv0 32))) (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) (_ bv1000000 32))))) (.cse11 (= |ULTIMATE.start_main_~#a~0.offset| (_ bv0 32)))) (or (let ((.cse1 (bvadd (_ bv4 32) |ULTIMATE.start_main_~#a~0.offset|))) (and (= (select .cse0 .cse1) (_ bv0 32)) .cse2 .cse3 (exists ((ULTIMATE.start_init_~i~0 (_ BitVec 32))) (and (not (= (bvmul (_ bv4 32) ULTIMATE.start_init_~i~0) (bvmul (_ bv4 32) ULTIMATE.start_main_~i~1))) (not (bvslt ULTIMATE.start_init_~i~0 (_ bv1000000 32))) (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) (_ bv1000000 32)))) (= (select .cse4 .cse1) (_ bv0 32)) .cse5 .cse6 (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~i~1) (_ bv1000000 32)) .cse7 .cse8 .cse9 .cse10 .cse11)) (and .cse3 .cse5 .cse7 .cse8 .cse9 .cse10 (= ULTIMATE.start_main_~i~1 (_ bv0 32)) .cse11) (and (= ULTIMATE.start_main_~i~1 (_ bv1 32)) .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (= (_ bv1 32) ULTIMATE.start_main_~flag~0)))) [2021-10-29 05:22:24,634 INFO L857 garLoopResultBuilder]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2021-10-29 05:22:24,634 INFO L857 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2021-10-29 05:22:24,634 INFO L853 garLoopResultBuilder]: At program point L23-3(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#a~0.base| ULTIMATE.start_init_~a.base)) (.cse1 (= ULTIMATE.start_init_~a.offset |ULTIMATE.start_main_~#a~0.offset|)) (.cse2 (= (_ bv1000000 32) ULTIMATE.start_init_~size)) (.cse3 (= |ULTIMATE.start_main_~#a~0.offset| (_ bv0 32)))) (or (and .cse0 .cse1 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#a~0.base|) (bvadd (_ bv4294967292 32) (bvmul ULTIMATE.start_init_~i~0 (_ bv4 32)) |ULTIMATE.start_main_~#a~0.offset|)) (_ bv0 32))) (bvslt (bvadd (_ bv4294967295 32) ULTIMATE.start_init_~i~0) ULTIMATE.start_init_~size) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_init_~i~0 (_ bv0 32)) .cse1 .cse2 .cse3))) [2021-10-29 05:22:24,634 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-29 05:22:24,634 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:22:24,634 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:22:24,635 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:22:24,635 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-29 05:22:24,635 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 27) no Hoare annotation was computed. [2021-10-29 05:22:24,635 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-10-29 05:22:24,635 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:22:24,635 INFO L857 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-10-29 05:22:24,636 INFO L857 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-10-29 05:22:24,636 INFO L857 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-10-29 05:22:24,636 INFO L857 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2021-10-29 05:22:24,636 INFO L853 garLoopResultBuilder]: At program point L42-3(lines 42 46) the Hoare annotation is: (not (= (_ bv0 32) ULTIMATE.start_main_~flag~0)) [2021-10-29 05:22:24,636 INFO L857 garLoopResultBuilder]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2021-10-29 05:22:24,636 INFO L860 garLoopResultBuilder]: At program point L47(lines 28 48) the Hoare annotation is: true [2021-10-29 05:22:24,641 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2021-10-29 05:22:24,643 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:22:24,655 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,660 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,664 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,665 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,666 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,666 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,666 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,669 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,670 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,670 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,670 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,671 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,671 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,671 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,672 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,672 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,672 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,673 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,677 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,678 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,679 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,680 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,680 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,680 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,681 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,681 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,681 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,682 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,683 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:22:24 BoogieIcfgContainer [2021-10-29 05:22:24,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:22:24,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:22:24,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:22:24,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:22:24,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:20:33" (3/4) ... [2021-10-29 05:22:24,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:22:24,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-29 05:22:24,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 05:22:24,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:22:24,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:22:24,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((#memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32 && #memory_$Pointer$[a][a] == 0bv32) && a == a) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!(~bvmul32(4bv32, ULTIMATE.start_init_~i~0) == ~bvmul32(4bv32, i)) && !~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && #memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && ~bvslt32(~bvadd64(4294967295bv32, i), 1000000bv32)) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && a == 0bv32) || (((((((a == a && a == a) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && i == 0bv32) && a == 0bv32)) || (((((((((i == 1bv32 && #memory_$Pointer$[a][a] == 0bv32) && a == a) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && a == 0bv32)) || 1bv32 == flag [2021-10-29 05:22:24,754 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:22:24,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:22:24,755 INFO L168 Benchmark]: Toolchain (without parser) took 112081.06 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 43.6 MB in the beginning and 20.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:24,756 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:24,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.97 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 46.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:24,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.85 ms. Allocated memory is still 62.9 MB. Free memory was 46.4 MB in the beginning and 44.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:24,764 INFO L168 Benchmark]: Boogie Preprocessor took 57.79 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 43.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:24,765 INFO L168 Benchmark]: RCFGBuilder took 527.87 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 33.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:24,765 INFO L168 Benchmark]: TraceAbstraction took 110894.67 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 32.4 MB in the beginning and 22.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:24,766 INFO L168 Benchmark]: Witness Printer took 64.69 ms. Allocated memory is still 94.4 MB. Free memory was 22.2 MB in the beginning and 20.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:24,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 450.97 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 46.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.85 ms. Allocated memory is still 62.9 MB. Free memory was 46.4 MB in the beginning and 44.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.79 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 43.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 527.87 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 33.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 110894.67 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 32.4 MB in the beginning and 22.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. * Witness Printer took 64.69 ms. Allocated memory is still 94.4 MB. Free memory was 22.2 MB in the beginning and 20.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 110.7s, OverallIterations: 8, TraceHistogramMax: 30, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 304 SDslu, 537 SDs, 0 SdLazy, 1738 SolverSat, 139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1500 GetRequests, 1322 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=7, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 46 NumberOfFragments, 298 HoareAnnotationTreeSize, 4 FomulaSimplifications, 2137 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 4 FomulaSimplificationsInter, 132 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 85.5s InterpolantComputationTime, 738 NumberOfCodeBlocks, 534 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1438 ConstructedInterpolants, 294 QuantifiedInterpolants, 15219 SizeOfPredicates, 103 NumberOfNonLiveVariables, 1985 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 38 InterpolantComputations, 8 PerfectInterpolantSequences, 6165/7650 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant [2021-10-29 05:22:24,786 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,787 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((a == a && a == a) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && a == 0bv32) || ((((a == a && i == 0bv32) && a == a) && 1000000bv32 == size) && a == 0bv32) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: !(0bv32 == flag) - InvariantResult [Line: 35]: Loop Invariant [2021-10-29 05:22:24,788 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,788 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,789 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,789 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,789 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,790 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,791 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,792 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,792 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,792 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,792 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,793 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,793 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,793 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,794 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,794 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,794 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,794 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,795 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,795 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,798 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,799 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,799 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,799 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,801 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,802 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,803 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-29 05:22:24,803 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,803 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,804 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-29 05:22:24,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-29 05:22:24,804 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] Derived loop invariant: ((((((((((((((#memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32 && #memory_$Pointer$[a][a] == 0bv32) && a == a) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!(~bvmul32(4bv32, ULTIMATE.start_init_~i~0) == ~bvmul32(4bv32, i)) && !~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && #memory_$Pointer$[a][~bvadd64(4bv32, a)] == 0bv32) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && ~bvslt32(~bvadd64(4294967295bv32, i), 1000000bv32)) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && a == 0bv32) || (((((((a == a && a == a) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && i == 0bv32) && a == 0bv32)) || (((((((((i == 1bv32 && #memory_$Pointer$[a][a] == 0bv32) && a == a) && a == a) && #memory_$Pointer$[a][a] == 0bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(i, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, i), size)) && 1000000bv32 == size) && (\exists ULTIMATE.start_init_~i~0 : bv32 :: (!~bvslt32(ULTIMATE.start_init_~i~0, 1000000bv32) && !(#memory_$Pointer$[a][~bvadd64(4294967292bv32, ~bvmul32(ULTIMATE.start_init_~i~0, 4bv32), a)] == 0bv32)) && ~bvslt32(~bvadd64(4294967295bv32, ULTIMATE.start_init_~i~0), 1000000bv32))) && a == 0bv32)) || 1bv32 == flag RESULT: Ultimate proved your program to be correct! [2021-10-29 05:22:24,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae4e80-8106-4d65-bed7-2a85425ffae4/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...