./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbf067540b591146948080eee51e37609cfd9933 ............................................................................................................................................ 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_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbf067540b591146948080eee51e37609cfd9933 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:12:17,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:12:17,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:12:17,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:12:17,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:12:17,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:12:17,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:12:17,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:12:17,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:12:17,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:12:17,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:12:17,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:12:17,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:12:17,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:12:17,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:12:17,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:12:17,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:12:17,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:12:17,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:12:17,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:12:17,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:12:18,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:12:18,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:12:18,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:12:18,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:12:18,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:12:18,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:12:18,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:12:18,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:12:18,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:12:18,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:12:18,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:12:18,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:12:18,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:12:18,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:12:18,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:12:18,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:12:18,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:12:18,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:12:18,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:12:18,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:12:18,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:12:18,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:12:18,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:12:18,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:12:18,084 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:12:18,084 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:12:18,084 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:12:18,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:12:18,085 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:12:18,085 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:12:18,085 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:12:18,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:12:18,087 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:12:18,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:12:18,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:12:18,088 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:12:18,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:12:18,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:12:18,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:12:18,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:12:18,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:12:18,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:12:18,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:12:18,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:12:18,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:12:18,091 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:12:18,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:12:18,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:12:18,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:12:18,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:12:18,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:12:18,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:12:18,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:12:18,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:12:18,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:12:18,095 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:12:18,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:12:18,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:12:18,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:12:18,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:12:18,096 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_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbf067540b591146948080eee51e37609cfd9933 [2021-10-13 08:12:18,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:12:18,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:12:18,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:12:18,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:12:18,455 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:12:18,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-13 08:12:18,546 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/dc9d0967c/74c9a0bf2c78456d96808ea4b4fb124d/FLAGa8b0df8e4 [2021-10-13 08:12:19,074 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:12:19,085 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-13 08:12:19,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/dc9d0967c/74c9a0bf2c78456d96808ea4b4fb124d/FLAGa8b0df8e4 [2021-10-13 08:12:19,406 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/dc9d0967c/74c9a0bf2c78456d96808ea4b4fb124d [2021-10-13 08:12:19,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:12:19,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:12:19,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:12:19,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:12:19,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:12:19,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:19" (1/1) ... [2021-10-13 08:12:19,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7771d9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:19, skipping insertion in model container [2021-10-13 08:12:19,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:19" (1/1) ... [2021-10-13 08:12:19,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:12:19,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:12:19,640 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_53b81e74-975c-478d-8b1a-6074f298be72/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-13 08:12:19,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:12:19,674 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 08:12:19,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ad0b929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:19, skipping insertion in model container [2021-10-13 08:12:19,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:12:19,675 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 08:12:19,678 INFO L168 Benchmark]: Toolchain (without parser) took 259.40 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 49.4 MB in the beginning and 81.7 MB in the end (delta: -32.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:12:19,679 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 53.8 MB in the beginning and 53.8 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:12:19,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.02 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 49.2 MB in the beginning and 81.7 MB in the end (delta: -32.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:12:19,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 53.8 MB in the beginning and 53.8 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.02 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 49.2 MB in the beginning and 81.7 MB in the end (delta: -32.5 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-4e77c04 [2021-10-13 08:12:22,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:12:22,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:12:22,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:12:22,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:12:22,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:12:22,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:12:22,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:12:22,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:12:22,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:12:22,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:12:22,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:12:22,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:12:22,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:12:22,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:12:22,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:12:22,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:12:22,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:12:22,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:12:22,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:12:22,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:12:22,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:12:22,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:12:22,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:12:22,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:12:22,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:12:22,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:12:22,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:12:22,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:12:22,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:12:22,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:12:22,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:12:22,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:12:22,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:12:22,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:12:22,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:12:22,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:12:22,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:12:22,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:12:22,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:12:22,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:12:22,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:12:22,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:12:22,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:12:22,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:12:22,325 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:12:22,326 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:12:22,326 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:12:22,326 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:12:22,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:12:22,327 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:12:22,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:12:22,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:12:22,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:12:22,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:12:22,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:12:22,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:12:22,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:12:22,331 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:12:22,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:12:22,331 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:12:22,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:12:22,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:12:22,332 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:12:22,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:12:22,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:12:22,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:12:22,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:12:22,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:12:22,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:12:22,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:12:22,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:12:22,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:12:22,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:22,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:12:22,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:12:22,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:12:22,335 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_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbf067540b591146948080eee51e37609cfd9933 [2021-10-13 08:12:22,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:12:22,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:12:22,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:12:22,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:12:22,791 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:12:22,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-13 08:12:22,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/9f149bb25/b4cbe89d83e046608e0545b2c262615e/FLAG7a3a623d2 [2021-10-13 08:12:23,497 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:12:23,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2021-10-13 08:12:23,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/9f149bb25/b4cbe89d83e046608e0545b2c262615e/FLAG7a3a623d2 [2021-10-13 08:12:23,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/data/9f149bb25/b4cbe89d83e046608e0545b2c262615e [2021-10-13 08:12:23,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:12:23,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:12:23,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:12:23,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:12:23,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:12:23,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:23" (1/1) ... [2021-10-13 08:12:23,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266ee776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:23, skipping insertion in model container [2021-10-13 08:12:23,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:23" (1/1) ... [2021-10-13 08:12:23,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:12:23,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:12:24,057 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_53b81e74-975c-478d-8b1a-6074f298be72/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-13 08:12:24,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:12:24,092 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 08:12:24,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:12:24,101 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_53b81e74-975c-478d-8b1a-6074f298be72/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-13 08:12:24,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:12:24,110 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:12:24,124 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_53b81e74-975c-478d-8b1a-6074f298be72/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2021-10-13 08:12:24,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:12:24,146 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:12:24,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24 WrapperNode [2021-10-13 08:12:24,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:12:24,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:12:24,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:12:24,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:12:24,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:12:24,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:12:24,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:12:24,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:12:24,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:12:24,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:12:24,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:12:24,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:12:24,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (1/1) ... [2021-10-13 08:12:24,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:12:24,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:12:24,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:12:24,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:12:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 08:12:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:12:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 08:12:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:12:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 08:12:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:12:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:12:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:12:24,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:12:24,528 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-13 08:12:24,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:24 BoogieIcfgContainer [2021-10-13 08:12:24,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:12:24,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:12:24,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:12:24,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:12:24,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:12:23" (1/3) ... [2021-10-13 08:12:24,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67041ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:24, skipping insertion in model container [2021-10-13 08:12:24,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:24" (2/3) ... [2021-10-13 08:12:24,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67041ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:24, skipping insertion in model container [2021-10-13 08:12:24,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:24" (3/3) ... [2021-10-13 08:12:24,538 INFO L111 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2021-10-13 08:12:24,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:12:24,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:12:24,607 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:12:24,614 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:12:24,614 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:12:24,628 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) [2021-10-13 08:12:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:12:24,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:24,634 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:24,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:24,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2060710478, now seen corresponding path program 1 times [2021-10-13 08:12:24,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:24,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383206945] [2021-10-13 08:12:24,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:24,655 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:24,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:24,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:24,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:12:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:24,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 08:12:24,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:24,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:24,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:24,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383206945] [2021-10-13 08:12:24,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383206945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:12:24,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:12:24,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:12:24,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146146969] [2021-10-13 08:12:24,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:12:24,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:24,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:12:24,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:12:24,945 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) [2021-10-13 08:12:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:24,961 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-10-13 08:12:24,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:12:24,962 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 [2021-10-13 08:12:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:24,970 INFO L225 Difference]: With dead ends: 36 [2021-10-13 08:12:24,971 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 08:12:24,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:12:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 08:12:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 08:12:25,005 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) [2021-10-13 08:12:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-13 08:12:25,007 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2021-10-13 08:12:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:25,008 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-13 08:12:25,008 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) [2021-10-13 08:12:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-13 08:12:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:12:25,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:25,009 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:25,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 08:12:25,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:12:25,225 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:25,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1919336157, now seen corresponding path program 1 times [2021-10-13 08:12:25,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:25,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356478092] [2021-10-13 08:12:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:25,228 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:25,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:25,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:25,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:12:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:25,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:12:25,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:25,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:25,560 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:25,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356478092] [2021-10-13 08:12:25,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356478092] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:12:25,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:12:25,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:12:25,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000607005] [2021-10-13 08:12:25,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:12:25,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:12:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:12:25,565 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) [2021-10-13 08:12:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:25,600 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-13 08:12:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:12:25,601 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 [2021-10-13 08:12:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:25,602 INFO L225 Difference]: With dead ends: 31 [2021-10-13 08:12:25,603 INFO L226 Difference]: Without dead ends: 19 [2021-10-13 08:12:25,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:12:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-13 08:12:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-13 08:12:25,608 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) [2021-10-13 08:12:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-10-13 08:12:25,609 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2021-10-13 08:12:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:25,610 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-13 08:12:25,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:12:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-10-13 08:12:25,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 08:12:25,611 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:25,611 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:25,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:25,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:12:25,823 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:25,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1315497119, now seen corresponding path program 1 times [2021-10-13 08:12:25,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:25,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801856025] [2021-10-13 08:12:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:25,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:25,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:25,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:25,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:12:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:25,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:12:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:26,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:26,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:26,311 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:26,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801856025] [2021-10-13 08:12:26,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801856025] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:26,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [721978416] [2021-10-13 08:12:26,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:26,312 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:26,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:12:26,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:12:26,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-13 08:12:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:26,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:12:26,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:26,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:12:26,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [721978416] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:26,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891396543] [2021-10-13 08:12:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:26,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:12:26,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:12:26,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:12:26,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 08:12:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:26,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:12:26,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 08:12:26,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 08:12:26,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891396543] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:12:26,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 08:12:26,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-10-13 08:12:26,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626705722] [2021-10-13 08:12:26,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:12:26,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:26,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:12:26,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:12:26,884 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) [2021-10-13 08:12:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:26,942 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-10-13 08:12:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:12:26,943 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 [2021-10-13 08:12:26,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:26,947 INFO L225 Difference]: With dead ends: 39 [2021-10-13 08:12:26,947 INFO L226 Difference]: Without dead ends: 31 [2021-10-13 08:12:26,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:12:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-13 08:12:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-10-13 08:12:26,961 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) [2021-10-13 08:12:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-10-13 08:12:26,966 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2021-10-13 08:12:26,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:26,967 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-13 08:12:26,967 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) [2021-10-13 08:12:26,968 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-10-13 08:12:26,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 08:12:26,970 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:26,970 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:27,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:27,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:27,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-13 08:12:27,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:12:27,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:27,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:27,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2030845279, now seen corresponding path program 1 times [2021-10-13 08:12:27,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:27,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401054481] [2021-10-13 08:12:27,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:27,587 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:27,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:27,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:27,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:12:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:27,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:12:27,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:12:27,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:12:27,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:27,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401054481] [2021-10-13 08:12:27,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401054481] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:27,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296357612] [2021-10-13 08:12:27,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:27,958 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:27,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:12:27,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:12:27,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-13 08:12:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:28,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:12:28,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 08:12:28,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 08:12:28,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [296357612] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:12:28,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 08:12:28,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-10-13 08:12:28,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935226960] [2021-10-13 08:12:28,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:12:28,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:12:28,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:12:28,269 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) [2021-10-13 08:12:28,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:28,296 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2021-10-13 08:12:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:12:28,297 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 [2021-10-13 08:12:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:28,303 INFO L225 Difference]: With dead ends: 42 [2021-10-13 08:12:28,304 INFO L226 Difference]: Without dead ends: 23 [2021-10-13 08:12:28,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 118.8ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:12:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-13 08:12:28,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-13 08:12:28,310 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) [2021-10-13 08:12:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-10-13 08:12:28,312 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2021-10-13 08:12:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:28,312 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-10-13 08:12:28,313 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) [2021-10-13 08:12:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-10-13 08:12:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 08:12:28,314 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:28,315 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:28,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:28,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:28,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:28,727 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:28,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:28,728 INFO L82 PathProgramCache]: Analyzing trace with hash -2139127327, now seen corresponding path program 1 times [2021-10-13 08:12:28,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:28,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749986064] [2021-10-13 08:12:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:28,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:28,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:28,730 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:28,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:12:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:28,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:12:28,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:12:28,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:12:29,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:29,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749986064] [2021-10-13 08:12:29,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749986064] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:29,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1724487320] [2021-10-13 08:12:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:29,142 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:29,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:12:29,145 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:12:29,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 08:12:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:29,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:12:29,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:12:29,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:12:29,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1724487320] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:29,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911943842] [2021-10-13 08:12:29,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:29,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:12:29,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:12:29,558 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:12:29,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 08:12:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:29,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 08:12:29,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 08:12:30,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:32,391 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:12:32,392 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 [2021-10-13 08:12:32,434 INFO L354 Elim1Store]: treesize reduction 7, result has 41.7 percent of original size [2021-10-13 08:12:32,435 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 [2021-10-13 08:12:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 08:12:32,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911943842] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:32,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:12:32,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 8, 7] total 19 [2021-10-13 08:12:32,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814458081] [2021-10-13 08:12:32,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 08:12:32,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:32,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 08:12:32,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-10-13 08:12:32,517 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) [2021-10-13 08:12:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:33,195 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-10-13 08:12:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 08:12:33,196 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 [2021-10-13 08:12:33,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:33,197 INFO L225 Difference]: With dead ends: 54 [2021-10-13 08:12:33,197 INFO L226 Difference]: Without dead ends: 38 [2021-10-13 08:12:33,198 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 749.3ms TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-10-13 08:12:33,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-13 08:12:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2021-10-13 08:12:33,202 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) [2021-10-13 08:12:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-10-13 08:12:33,203 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 20 [2021-10-13 08:12:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:33,204 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-10-13 08:12:33,204 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) [2021-10-13 08:12:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-10-13 08:12:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 08:12:33,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:33,208 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:33,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:33,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-10-13 08:12:33,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:33,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:12:33,833 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:33,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:33,834 INFO L82 PathProgramCache]: Analyzing trace with hash 225697560, now seen corresponding path program 1 times [2021-10-13 08:12:33,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:33,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562533872] [2021-10-13 08:12:33,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:33,834 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:33,836 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:33,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 08:12:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:34,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 08:12:34,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 08:12:34,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 08:12:34,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:34,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562533872] [2021-10-13 08:12:34,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562533872] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:34,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1615996056] [2021-10-13 08:12:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:34,826 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:34,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:12:34,833 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:12:34,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 08:12:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:35,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 08:12:35,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 08:12:35,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 08:12:35,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1615996056] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:35,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152914240] [2021-10-13 08:12:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:12:35,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:12:35,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:12:35,524 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:12:35,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 08:12:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:12:35,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:12:35,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-13 08:12:36,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:36,241 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-13 08:12:36,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152914240] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:36,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:12:36,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 5, 5] total 22 [2021-10-13 08:12:36,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322344552] [2021-10-13 08:12:36,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 08:12:36,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:36,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 08:12:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-10-13 08:12:36,244 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) [2021-10-13 08:12:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:37,602 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2021-10-13 08:12:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 08:12:37,603 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 [2021-10-13 08:12:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:37,604 INFO L225 Difference]: With dead ends: 112 [2021-10-13 08:12:37,604 INFO L226 Difference]: Without dead ends: 93 [2021-10-13 08:12:37,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1417.4ms TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2021-10-13 08:12:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-13 08:12:37,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 62. [2021-10-13 08:12:37,615 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) [2021-10-13 08:12:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2021-10-13 08:12:37,616 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 33 [2021-10-13 08:12:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:37,616 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2021-10-13 08:12:37,617 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) [2021-10-13 08:12:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2021-10-13 08:12:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-13 08:12:37,619 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:37,619 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:37,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:37,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-13 08:12:38,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:38,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:12:38,223 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:38,223 INFO L82 PathProgramCache]: Analyzing trace with hash 616513032, now seen corresponding path program 2 times [2021-10-13 08:12:38,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:38,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596739671] [2021-10-13 08:12:38,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 08:12:38,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:38,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:38,225 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:38,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 08:12:38,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 08:12:38,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:12:38,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 08:12:38,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 08:12:39,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 08:12:40,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:12:40,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596739671] [2021-10-13 08:12:40,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596739671] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:40,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1220981461] [2021-10-13 08:12:40,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 08:12:40,448 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:12:40,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:12:40,449 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:12:40,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-13 08:12:40,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 08:12:40,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:12:40,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 08:12:40,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 08:12:41,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:41,517 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-10-13 08:12:41,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1220981461] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:41,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563042179] [2021-10-13 08:12:41,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 08:12:41,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:12:41,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:12:41,519 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:12:41,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 08:12:41,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 08:12:41,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:12:41,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 08:12:41,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-10-13 08:12:43,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:44,831 INFO L354 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2021-10-13 08:12:44,831 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 [2021-10-13 08:12:44,846 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-13 08:12:44,846 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 [2021-10-13 08:12:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-10-13 08:12:45,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563042179] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:12:45,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:12:45,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17, 17, 11, 10] total 49 [2021-10-13 08:12:45,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340561592] [2021-10-13 08:12:45,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-13 08:12:45,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:12:45,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-13 08:12:45,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=1996, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 08:12:45,046 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) [2021-10-13 08:12:51,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:12:51,787 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2021-10-13 08:12:51,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-13 08:12:51,788 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 [2021-10-13 08:12:51,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:12:51,790 INFO L225 Difference]: With dead ends: 134 [2021-10-13 08:12:51,790 INFO L226 Difference]: Without dead ends: 103 [2021-10-13 08:12:51,794 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 7942.2ms TimeCoverageRelationStatistics Valid=1199, Invalid=5941, Unknown=0, NotChecked=0, Total=7140 [2021-10-13 08:12:51,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-13 08:12:51,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2021-10-13 08:12:51,807 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) [2021-10-13 08:12:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 101 transitions. [2021-10-13 08:12:51,808 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 101 transitions. Word has length 61 [2021-10-13 08:12:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:12:51,809 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 101 transitions. [2021-10-13 08:12:51,809 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) [2021-10-13 08:12:51,810 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2021-10-13 08:12:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-13 08:12:51,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:12:51,813 INFO L512 BasicCegarLoop]: trace histogram [30, 30, 6, 6, 6, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:12:51,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:52,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 08:12:52,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-13 08:12:52,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:12:52,417 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:12:52,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:12:52,418 INFO L82 PathProgramCache]: Analyzing trace with hash 333100921, now seen corresponding path program 3 times [2021-10-13 08:12:52,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:12:52,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523734617] [2021-10-13 08:12:52,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 08:12:52,420 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:12:52,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:12:52,422 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:12:52,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 08:12:52,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 08:12:52,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:12:52,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 08:12:52,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:12:53,828 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 [2021-10-13 08:12:54,473 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:12:54,473 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 [2021-10-13 08:12:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-13 08:12:54,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:12:55,952 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 [2021-10-13 08:13:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-13 08:13:13,236 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:13:13,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523734617] [2021-10-13 08:13:13,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523734617] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:13:13,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1079053953] [2021-10-13 08:13:13,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 08:13:13,237 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:13:13,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:13:13,238 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:13:13,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-13 08:13:14,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 08:13:14,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:13:14,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 08:13:14,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:14,874 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 [2021-10-13 08:13:15,315 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:15,315 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 [2021-10-13 08:13:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-13 08:13:15,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:15,959 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 [2021-10-13 08:13:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-13 08:13:33,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1079053953] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:13:33,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026673197] [2021-10-13 08:13:33,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 08:13:33,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:13:33,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:13:33,750 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:13:33,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-13 08:13:34,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 08:13:34,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:13:34,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 08:13:34,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:13:35,584 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 [2021-10-13 08:13:36,069 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:13:36,069 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 [2021-10-13 08:13:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-13 08:13:36,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:13:36,772 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 [2021-10-13 08:13:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 887 trivial. 0 not checked. [2021-10-13 08:13:53,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026673197] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:13:53,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:13:53,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 16 [2021-10-13 08:13:53,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819990306] [2021-10-13 08:13:53,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 08:13:53,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:13:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 08:13:53,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-10-13 08:13:53,982 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) [2021-10-13 08:13:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:13:55,296 INFO L93 Difference]: Finished difference Result 99 states and 101 transitions. [2021-10-13 08:13:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 08:13:55,298 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 [2021-10-13 08:13:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:13:55,299 INFO L225 Difference]: With dead ends: 99 [2021-10-13 08:13:55,299 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:13:55,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1986.1ms TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2021-10-13 08:13:55,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:13:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:13:55,300 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) [2021-10-13 08:13:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:13:55,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2021-10-13 08:13:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:13:55,301 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:13:55,301 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) [2021-10-13 08:13:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:13:55,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:13:55,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:13:55,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:55,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:55,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-13 08:13:55,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:13:55,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:13:55,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:13:55,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:13:56,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:13:56,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:13:57,080 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 41) no Hoare annotation was computed. [2021-10-13 08:13:57,081 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)))) [2021-10-13 08:13:57,081 INFO L857 garLoopResultBuilder]: For program point L35-4(lines 35 41) no Hoare annotation was computed. [2021-10-13 08:13:57,081 INFO L857 garLoopResultBuilder]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2021-10-13 08:13:57,081 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))) [2021-10-13 08:13:57,081 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-13 08:13:57,081 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 27) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-10-13 08:13:57,082 INFO L857 garLoopResultBuilder]: For program point L42-2(lines 42 46) no Hoare annotation was computed. [2021-10-13 08:13:57,083 INFO L853 garLoopResultBuilder]: At program point L42-3(lines 42 46) the Hoare annotation is: (not (= (_ bv0 32) ULTIMATE.start_main_~flag~0)) [2021-10-13 08:13:57,083 INFO L857 garLoopResultBuilder]: For program point L42-4(lines 42 46) no Hoare annotation was computed. [2021-10-13 08:13:57,083 INFO L860 garLoopResultBuilder]: At program point L47(lines 28 48) the Hoare annotation is: true [2021-10-13 08:13:57,088 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:13:57,103 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,113 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,122 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,122 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,123 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,123 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,124 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,124 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,124 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,125 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,125 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,125 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,126 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,126 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,135 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,135 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,135 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,136 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,147 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,148 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,153 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,154 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,155 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,155 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,156 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,156 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,156 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:13:57 BoogieIcfgContainer [2021-10-13 08:13:57,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:13:57,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:13:57,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:13:57,162 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:13:57,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:24" (3/4) ... [2021-10-13 08:13:57,166 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:13:57,177 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-13 08:13:57,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 08:13:57,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:13:57,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:13:57,208 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 [2021-10-13 08:13:57,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:13:57,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:13:57,227 INFO L168 Benchmark]: Toolchain (without parser) took 93353.20 ms. Allocated memory was 56.6 MB in the beginning and 107.0 MB in the end (delta: 50.3 MB). Free memory was 34.7 MB in the beginning and 24.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,228 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:13:57,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.44 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 23.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.43 ms. Allocated memory is still 56.6 MB. Free memory was 23.5 MB in the beginning and 39.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,229 INFO L168 Benchmark]: Boogie Preprocessor took 27.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 38.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,234 INFO L168 Benchmark]: RCFGBuilder took 310.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 27.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,235 INFO L168 Benchmark]: TraceAbstraction took 92628.43 ms. Allocated memory was 56.6 MB in the beginning and 107.0 MB in the end (delta: 50.3 MB). Free memory was 27.3 MB in the beginning and 27.7 MB in the end (delta: -380.2 kB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,235 INFO L168 Benchmark]: Witness Printer took 65.16 ms. Allocated memory is still 107.0 MB. Free memory was 27.7 MB in the beginning and 24.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:13:57,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.44 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 23.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.43 ms. Allocated memory is still 56.6 MB. Free memory was 23.5 MB in the beginning and 39.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.5 MB in the beginning and 38.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 310.17 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 27.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92628.43 ms. Allocated memory was 56.6 MB in the beginning and 107.0 MB in the end (delta: 50.3 MB). Free memory was 27.3 MB in the beginning and 27.7 MB in the end (delta: -380.2 kB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. * Witness Printer took 65.16 ms. Allocated memory is still 107.0 MB. Free memory was 27.7 MB in the beginning and 24.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 92482.1ms, OverallIterations: 8, TraceHistogramMax: 30, EmptinessCheckTime: 23.5ms, AutomataDifference: 10295.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1173.6ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 125 SDtfs, 304 SDslu, 537 SDs, 0 SdLazy, 1738 SolverSat, 139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2206.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1500 GetRequests, 1322 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 12370.3ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 79.6ms AutomataMinimizationTime, 8 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 46 NumberOfFragments, 298 HoareAnnotationTreeSize, 4 FomulaSimplifications, 2137 FormulaSimplificationTreeSizeReduction, 195.1ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 132 FormulaSimplificationTreeSizeReductionInter, 972.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 324.2ms SsaConstructionTime, 1125.8ms SatisfiabilityAnalysisTime, 71330.6ms 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 [2021-10-13 08:13:57,253 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,255 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 [2021-10-13 08:13:57,256 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,256 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,257 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,257 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,257 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,258 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,259 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,259 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,259 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,260 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,260 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,260 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,260 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,261 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,261 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,261 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,262 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,262 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,262 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,262 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,263 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,263 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,265 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,265 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,273 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,274 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-10-13 08:13:57,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-10-13 08:13:57,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_init_~i~0,QUANTIFIED] [2021-10-13 08:13:57,278 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! [2021-10-13 08:13:57,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53b81e74-975c-478d-8b1a-6074f298be72/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...