./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0102-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 ............................................................................................................................................. 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_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:55:02,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:55:02,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:55:02,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:55:02,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:55:02,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:55:02,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:55:02,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:55:02,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:55:02,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:55:02,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:55:02,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:55:02,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:55:02,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:55:02,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:55:02,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:55:02,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:55:02,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:55:02,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:55:02,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:55:02,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:55:02,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:55:02,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:55:02,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:55:02,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:55:02,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:55:02,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:55:02,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:55:02,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:55:02,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:55:02,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:55:02,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:55:02,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:55:02,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:55:02,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:55:02,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:55:02,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:55:02,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:55:02,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:55:02,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:55:02,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:55:02,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:55:02,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:55:02,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:55:02,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:55:02,267 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:55:02,268 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:55:02,268 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:55:02,268 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:55:02,268 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:55:02,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:55:02,269 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:55:02,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:55:02,270 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:55:02,271 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:55:02,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:55:02,271 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:55:02,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:55:02,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:55:02,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:55:02,273 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:55:02,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:55:02,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:55:02,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:55:02,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:55:02,274 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:55:02,275 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:55:02,275 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:55:02,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:55:02,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:55:02,276 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:55:02,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:55:02,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:55:02,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:55:02,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:55:02,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:55:02,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:55:02,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:55:02,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:55:02,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:55:02,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:55:02,279 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_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 [2021-10-29 04:55:02,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:55:02,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:55:02,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:55:02,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:55:02,658 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:55:02,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/memsafety/test-0102-2.i [2021-10-29 04:55:02,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/0dea4faf9/90394612b1154f93a767db84f2309ea3/FLAG414ab0881 [2021-10-29 04:55:03,258 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:55:03,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/sv-benchmarks/c/memsafety/test-0102-2.i [2021-10-29 04:55:03,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/0dea4faf9/90394612b1154f93a767db84f2309ea3/FLAG414ab0881 [2021-10-29 04:55:03,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/0dea4faf9/90394612b1154f93a767db84f2309ea3 [2021-10-29 04:55:03,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:55:03,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:55:03,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:55:03,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:55:03,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:55:03,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:55:03" (1/1) ... [2021-10-29 04:55:03,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27321830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:03, skipping insertion in model container [2021-10-29 04:55:03,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:55:03" (1/1) ... [2021-10-29 04:55:03,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:55:03,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:55:04,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:55:04,023 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-29 04:55:04,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a91ea03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:04, skipping insertion in model container [2021-10-29 04:55:04,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:55:04,025 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:55:04,027 INFO L168 Benchmark]: Toolchain (without parser) took 459.90 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 63.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:55:04,028 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:55:04,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.53 ms. Allocated memory is still 94.4 MB. Free memory was 53.8 MB in the beginning and 63.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:55:04,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 447.53 ms. Allocated memory is still 94.4 MB. Free memory was 53.8 MB in the beginning and 63.9 MB in the end (delta: -10.1 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: 551]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:55:06,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:55:06,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:55:06,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:55:06,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:55:06,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:55:06,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:55:06,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:55:06,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:55:06,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:55:06,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:55:06,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:55:06,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:55:06,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:55:06,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:55:06,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:55:06,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:55:06,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:55:06,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:55:06,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:55:06,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:55:06,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:55:06,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:55:06,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:55:06,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:55:06,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:55:06,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:55:06,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:55:06,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:55:06,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:55:06,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:55:06,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:55:06,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:55:06,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:55:06,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:55:06,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:55:06,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:55:06,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:55:06,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:55:06,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:55:06,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:55:06,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 04:55:06,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:55:06,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:55:06,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:55:06,759 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:55:06,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:55:06,760 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:55:06,760 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:55:06,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:55:06,760 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:55:06,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:55:06,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:55:06,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:55:06,764 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:55:06,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:55:06,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:55:06,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:55:06,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:55:06,765 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:55:06,765 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:55:06,766 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:55:06,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:55:06,766 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:55:06,766 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:55:06,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:55:06,767 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:55:06,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:55:06,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:55:06,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:55:06,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:55:06,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:55:06,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:55:06,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:55:06,769 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:55:06,770 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:55:06,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:55:06,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:55:06,770 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_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d10910cb8c44ec8f982d35122d9e66670129ee7c874265953b685f7f63a30072 [2021-10-29 04:55:07,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:55:07,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:55:07,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:55:07,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:55:07,243 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:55:07,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/memsafety/test-0102-2.i [2021-10-29 04:55:07,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/e3eb9a1db/111cdab53dcd452e98b0174d2e428201/FLAG1bea6b08e [2021-10-29 04:55:07,894 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:55:07,895 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/sv-benchmarks/c/memsafety/test-0102-2.i [2021-10-29 04:55:07,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/e3eb9a1db/111cdab53dcd452e98b0174d2e428201/FLAG1bea6b08e [2021-10-29 04:55:08,163 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/data/e3eb9a1db/111cdab53dcd452e98b0174d2e428201 [2021-10-29 04:55:08,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:55:08,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:55:08,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:55:08,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:55:08,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:55:08,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4055bb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08, skipping insertion in model container [2021-10-29 04:55:08,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:55:08,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:55:08,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:55:08,638 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:55:08,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:55:08,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:55:08,692 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:55:08,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:55:08,783 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:55:08,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08 WrapperNode [2021-10-29 04:55:08,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:55:08,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:55:08,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:55:08,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:55:08,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:55:08,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:55:08,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:55:08,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:55:08,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:55:08,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:55:08,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:55:08,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:55:08,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (1/1) ... [2021-10-29 04:55:08,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:55:08,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:55:08,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:55:08,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:55:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:55:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 04:55:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:55:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 04:55:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:55:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:55:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:55:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:55:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:55:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:55:09,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:55:09,971 INFO L299 CfgBuilder]: Removed 37 assume(true) statements. [2021-10-29 04:55:09,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:55:09 BoogieIcfgContainer [2021-10-29 04:55:09,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:55:09,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:55:09,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:55:09,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:55:09,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:55:08" (1/3) ... [2021-10-29 04:55:09,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6301b48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:55:09, skipping insertion in model container [2021-10-29 04:55:09,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:55:08" (2/3) ... [2021-10-29 04:55:09,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6301b48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:55:09, skipping insertion in model container [2021-10-29 04:55:09,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:55:09" (3/3) ... [2021-10-29 04:55:09,983 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0102-2.i [2021-10-29 04:55:09,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:55:09,990 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2021-10-29 04:55:10,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:55:10,048 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:55:10,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2021-10-29 04:55:10,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 63 states have (on average 2.111111111111111) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:55:10,074 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:10,075 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:55:10,075 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:10,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash 28828812, now seen corresponding path program 1 times [2021-10-29 04:55:10,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:10,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711199608] [2021-10-29 04:55:10,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:10,097 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:10,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:10,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:10,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:55:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:10,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:55:10,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:10,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:10,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:10,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711199608] [2021-10-29 04:55:10,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711199608] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:10,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:10,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:55:10,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850104695] [2021-10-29 04:55:10,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:55:10,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:55:10,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:55:10,307 INFO L87 Difference]: Start difference. First operand has 121 states, 63 states have (on average 2.111111111111111) internal successors, (133), 120 states have internal predecessors, (133), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:10,329 INFO L93 Difference]: Finished difference Result 121 states and 125 transitions. [2021-10-29 04:55:10,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:55:10,331 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-29 04:55:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:10,342 INFO L225 Difference]: With dead ends: 121 [2021-10-29 04:55:10,342 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 04:55:10,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:55:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 04:55:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-29 04:55:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 62 states have (on average 1.9838709677419355) internal successors, (123), 118 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 123 transitions. [2021-10-29 04:55:10,390 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 123 transitions. Word has length 5 [2021-10-29 04:55:10,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:10,391 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 123 transitions. [2021-10-29 04:55:10,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:10,391 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 123 transitions. [2021-10-29 04:55:10,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:55:10,392 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:10,392 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:55:10,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:10,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:10,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:10,611 INFO L85 PathProgramCache]: Analyzing trace with hash 889540459, now seen corresponding path program 1 times [2021-10-29 04:55:10,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:10,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169170485] [2021-10-29 04:55:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:10,614 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:10,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:10,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:10,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:55:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:10,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:55:10,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:10,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:10,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:11,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:11,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169170485] [2021-10-29 04:55:11,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169170485] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:11,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:11,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 04:55:11,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055643894] [2021-10-29 04:55:11,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:55:11,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:11,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:55:11,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:55:11,088 INFO L87 Difference]: Start difference. First operand 119 states and 123 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:12,124 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2021-10-29 04:55:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:55:12,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 6 [2021-10-29 04:55:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:12,129 INFO L225 Difference]: With dead ends: 119 [2021-10-29 04:55:12,129 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 04:55:12,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:55:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 04:55:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-10-29 04:55:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 62 states have (on average 1.9516129032258065) internal successors, (121), 116 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2021-10-29 04:55:12,157 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 6 [2021-10-29 04:55:12,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:12,159 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2021-10-29 04:55:12,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2021-10-29 04:55:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:55:12,160 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:12,161 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:55:12,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:12,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:12,374 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:12,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:12,374 INFO L85 PathProgramCache]: Analyzing trace with hash 889540458, now seen corresponding path program 1 times [2021-10-29 04:55:12,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:12,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730548835] [2021-10-29 04:55:12,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:12,375 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:12,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:12,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:12,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:55:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:12,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:55:12,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:12,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:12,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:12,557 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:12,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730548835] [2021-10-29 04:55:12,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730548835] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:12,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:12,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:55:12,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992197141] [2021-10-29 04:55:12,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:55:12,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:55:12,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:55:12,560 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:12,977 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2021-10-29 04:55:12,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:55:12,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-10-29 04:55:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:12,979 INFO L225 Difference]: With dead ends: 143 [2021-10-29 04:55:12,980 INFO L226 Difference]: Without dead ends: 143 [2021-10-29 04:55:12,980 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:55:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-29 04:55:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 113. [2021-10-29 04:55:12,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 62 states have (on average 1.8870967741935485) internal successors, (117), 112 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2021-10-29 04:55:12,997 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 6 [2021-10-29 04:55:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:12,998 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2021-10-29 04:55:12,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2021-10-29 04:55:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:55:12,999 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:12,999 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:13,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:13,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:13,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:13,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:13,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1986689261, now seen corresponding path program 1 times [2021-10-29 04:55:13,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:13,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169350668] [2021-10-29 04:55:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:13,219 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:13,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:13,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:13,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:55:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:13,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:55:13,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:13,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:13,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:13,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:13,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169350668] [2021-10-29 04:55:13,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169350668] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:13,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:13,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:55:13,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181518390] [2021-10-29 04:55:13,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:55:13,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:13,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:55:13,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:55:13,455 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:13,755 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2021-10-29 04:55:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:55:13,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 04:55:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:13,758 INFO L225 Difference]: With dead ends: 118 [2021-10-29 04:55:13,758 INFO L226 Difference]: Without dead ends: 118 [2021-10-29 04:55:13,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:55:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-29 04:55:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 111. [2021-10-29 04:55:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 62 states have (on average 1.8548387096774193) internal successors, (115), 110 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2021-10-29 04:55:13,767 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 10 [2021-10-29 04:55:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:13,767 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2021-10-29 04:55:13,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2021-10-29 04:55:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:55:13,768 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:13,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:13,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:13,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:13,985 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:13,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1986689262, now seen corresponding path program 1 times [2021-10-29 04:55:13,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:13,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772393522] [2021-10-29 04:55:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:13,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:13,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:13,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:55:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:14,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:55:14,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:14,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:14,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:14,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:14,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772393522] [2021-10-29 04:55:14,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772393522] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:14,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:14,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:55:14,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208023200] [2021-10-29 04:55:14,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:55:14,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:55:14,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:55:14,176 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:14,400 INFO L93 Difference]: Finished difference Result 142 states and 148 transitions. [2021-10-29 04:55:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:55:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 04:55:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:14,402 INFO L225 Difference]: With dead ends: 142 [2021-10-29 04:55:14,402 INFO L226 Difference]: Without dead ends: 142 [2021-10-29 04:55:14,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:55:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-29 04:55:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2021-10-29 04:55:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 62 states have (on average 1.8225806451612903) internal successors, (113), 108 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2021-10-29 04:55:14,410 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 10 [2021-10-29 04:55:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:14,411 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2021-10-29 04:55:14,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2021-10-29 04:55:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:55:14,412 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:14,412 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:14,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:14,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:14,624 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2052066035, now seen corresponding path program 1 times [2021-10-29 04:55:14,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:14,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834009513] [2021-10-29 04:55:14,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:14,626 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:14,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:14,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:14,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:55:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:14,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:55:14,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:14,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:14,825 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-29 04:55:14,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-10-29 04:55:14,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:14,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:15,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:15,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834009513] [2021-10-29 04:55:15,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834009513] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:15,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:15,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-29 04:55:15,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381590066] [2021-10-29 04:55:15,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:55:15,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:15,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:55:15,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:55:15,085 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:15,584 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2021-10-29 04:55:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:55:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:55:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:15,585 INFO L225 Difference]: With dead ends: 143 [2021-10-29 04:55:15,586 INFO L226 Difference]: Without dead ends: 143 [2021-10-29 04:55:15,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:55:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-29 04:55:15,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2021-10-29 04:55:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 62 states have (on average 1.7903225806451613) internal successors, (111), 106 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2021-10-29 04:55:15,593 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 12 [2021-10-29 04:55:15,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:15,594 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2021-10-29 04:55:15,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:15,594 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2021-10-29 04:55:15,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:55:15,594 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:15,594 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:15,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:15,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:15,795 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2052066036, now seen corresponding path program 1 times [2021-10-29 04:55:15,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:15,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261440274] [2021-10-29 04:55:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:15,796 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:15,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:15,797 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:15,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:55:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:15,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-29 04:55:15,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:15,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:15,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:16,150 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-29 04:55:16,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-10-29 04:55:16,164 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 04:55:16,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2021-10-29 04:55:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:16,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:17,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:17,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261440274] [2021-10-29 04:55:17,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261440274] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:17,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:17,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-29 04:55:17,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384904174] [2021-10-29 04:55:17,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:55:17,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:17,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:55:17,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:55:17,206 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:34,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:34,972 INFO L93 Difference]: Finished difference Result 137 states and 143 transitions. [2021-10-29 04:55:34,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 04:55:34,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:55:34,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:34,975 INFO L225 Difference]: With dead ends: 137 [2021-10-29 04:55:34,975 INFO L226 Difference]: Without dead ends: 137 [2021-10-29 04:55:34,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2021-10-29 04:55:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-29 04:55:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 105. [2021-10-29 04:55:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.7580645161290323) internal successors, (109), 104 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:34,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2021-10-29 04:55:34,986 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 12 [2021-10-29 04:55:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:34,987 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2021-10-29 04:55:34,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2021-10-29 04:55:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:55:34,988 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:34,988 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:34,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:35,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:35,194 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:35,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash 645470996, now seen corresponding path program 1 times [2021-10-29 04:55:35,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:35,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632189269] [2021-10-29 04:55:35,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:35,196 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:35,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:35,197 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:35,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:55:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:35,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:55:35,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:35,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:35,452 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:35,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632189269] [2021-10-29 04:55:35,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632189269] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:35,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:35,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:55:35,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827875782] [2021-10-29 04:55:35,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:55:35,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:35,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:55:35,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:55:35,455 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:35,877 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2021-10-29 04:55:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:55:35,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 04:55:35,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:35,879 INFO L225 Difference]: With dead ends: 140 [2021-10-29 04:55:35,879 INFO L226 Difference]: Without dead ends: 140 [2021-10-29 04:55:35,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:55:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-29 04:55:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 102. [2021-10-29 04:55:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 101 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2021-10-29 04:55:35,884 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 14 [2021-10-29 04:55:35,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:35,885 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2021-10-29 04:55:35,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2021-10-29 04:55:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:55:35,885 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:35,886 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:35,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:36,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:36,101 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:36,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:36,102 INFO L85 PathProgramCache]: Analyzing trace with hash 645470997, now seen corresponding path program 1 times [2021-10-29 04:55:36,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:36,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333772648] [2021-10-29 04:55:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:36,102 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:36,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:36,104 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:36,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 04:55:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:36,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:55:36,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:36,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:36,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 6 [2021-10-29 04:55:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:36,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:36,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333772648] [2021-10-29 04:55:36,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333772648] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:36,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:36,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-29 04:55:36,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943200669] [2021-10-29 04:55:36,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-29 04:55:36,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 04:55:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-29 04:55:36,943 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:39,092 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2021-10-29 04:55:39,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:55:39,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 04:55:39,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:39,096 INFO L225 Difference]: With dead ends: 116 [2021-10-29 04:55:39,096 INFO L226 Difference]: Without dead ends: 116 [2021-10-29 04:55:39,097 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2021-10-29 04:55:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-29 04:55:39,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 99. [2021-10-29 04:55:39,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 98 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:39,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2021-10-29 04:55:39,101 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 14 [2021-10-29 04:55:39,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:39,102 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2021-10-29 04:55:39,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.0) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:39,102 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2021-10-29 04:55:39,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:55:39,103 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:39,103 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:39,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:39,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:39,314 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1465235593, now seen corresponding path program 1 times [2021-10-29 04:55:39,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:39,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302638983] [2021-10-29 04:55:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:39,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:39,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:39,316 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:39,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 04:55:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:39,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:55:39,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:39,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:39,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:39,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:39,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:39,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302638983] [2021-10-29 04:55:39,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302638983] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:39,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:39,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:55:39,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406272879] [2021-10-29 04:55:39,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:55:39,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:39,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:55:39,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:55:39,615 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:40,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:40,140 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2021-10-29 04:55:40,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:55:40,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 04:55:40,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:40,142 INFO L225 Difference]: With dead ends: 136 [2021-10-29 04:55:40,142 INFO L226 Difference]: Without dead ends: 136 [2021-10-29 04:55:40,143 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:55:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-29 04:55:40,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 94. [2021-10-29 04:55:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 93 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2021-10-29 04:55:40,147 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 15 [2021-10-29 04:55:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:40,147 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2021-10-29 04:55:40,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2021-10-29 04:55:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:55:40,148 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:40,149 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:40,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 04:55:40,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:40,360 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1465235592, now seen corresponding path program 1 times [2021-10-29 04:55:40,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:40,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049528861] [2021-10-29 04:55:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:40,361 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:40,362 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:40,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 04:55:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:40,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:55:40,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:40,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:40,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:41,000 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:41,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049528861] [2021-10-29 04:55:41,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049528861] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:41,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:41,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 04:55:41,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567142223] [2021-10-29 04:55:41,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:55:41,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:41,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:55:41,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:55:41,002 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:55:41,801 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2021-10-29 04:55:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:55:41,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 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 15 [2021-10-29 04:55:41,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:55:41,804 INFO L225 Difference]: With dead ends: 102 [2021-10-29 04:55:41,805 INFO L226 Difference]: Without dead ends: 102 [2021-10-29 04:55:41,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:55:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-29 04:55:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2021-10-29 04:55:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.5161290322580645) internal successors, (94), 89 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2021-10-29 04:55:41,809 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 15 [2021-10-29 04:55:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:55:41,809 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2021-10-29 04:55:41,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:55:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2021-10-29 04:55:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:55:41,810 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:55:41,811 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:55:41,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-29 04:55:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:55:42,023 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:55:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:55:42,024 INFO L85 PathProgramCache]: Analyzing trace with hash 657868666, now seen corresponding path program 1 times [2021-10-29 04:55:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:55:42,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005594159] [2021-10-29 04:55:42,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:42,025 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:55:42,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:55:42,026 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:55:42,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 04:55:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:42,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-29 04:55:42,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:42,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:42,337 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 13 treesize of output 9 [2021-10-29 04:55:42,420 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-10-29 04:55:42,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:55:42,506 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:55:42,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-29 04:55:42,721 INFO L354 Elim1Store]: treesize reduction 562, result has 2.9 percent of original size [2021-10-29 04:55:42,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 27 [2021-10-29 04:55:42,844 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-10-29 04:55:42,845 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 26 treesize of output 10 [2021-10-29 04:55:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:42,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:43,031 INFO L354 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2021-10-29 04:55:43,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-10-29 04:55:43,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:55:43,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 04:55:50,811 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_24 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_24 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_24) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_24)))))) is different from false [2021-10-29 04:55:52,892 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_24 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_24 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_24) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_24)))))) is different from false [2021-10-29 04:55:56,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:56,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005594159] [2021-10-29 04:55:56,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 04:55:56,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1003884294] [2021-10-29 04:55:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:55:56,292 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:55:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:55:56,294 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:55:56,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-29 04:55:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:55:56,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-29 04:55:56,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:55:56,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:55:56,736 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 13 treesize of output 9 [2021-10-29 04:55:56,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:55:56,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:55:56,934 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:55:56,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-10-29 04:55:57,152 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:55:57,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 25 [2021-10-29 04:55:57,304 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:55:57,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 18 [2021-10-29 04:55:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:57,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:57,402 INFO L354 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2021-10-29 04:55:57,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-10-29 04:55:57,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:55:57,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-29 04:56:09,689 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))) (= (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base))) is different from false [2021-10-29 04:56:11,769 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) is different from false [2021-10-29 04:56:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:56:11,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1003884294] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:56:11,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:56:11,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-10-29 04:56:11,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469646762] [2021-10-29 04:56:11,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-29 04:56:11,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:56:11,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-29 04:56:11,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=395, Unknown=5, NotChecked=172, Total=650 [2021-10-29 04:56:11,880 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:56:13,996 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| c_ULTIMATE.start_insert_top_~top~0.base)))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (= c_ULTIMATE.start_insert_top_~top~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_create_sub_list_~sub.base))))) (= c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv8 32))) is different from false [2021-10-29 04:56:39,798 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_25 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_25) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_4))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_25))))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| c_ULTIMATE.start_insert_top_~top~0.base)))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))) c_ULTIMATE.start_create_sub_list_~sub.base) (= c_ULTIMATE.start_insert_top_~top~0.offset (_ bv0 32)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_create_sub_list_~sub.base))))) (= c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv8 32)) (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| c_ULTIMATE.start___list_add_~prev.base)) (_ bv1 1)))) is different from false [2021-10-29 04:56:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:56:40,037 INFO L93 Difference]: Finished difference Result 134 states and 140 transitions. [2021-10-29 04:56:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-29 04:56:40,038 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 04:56:40,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:56:40,039 INFO L225 Difference]: With dead ends: 134 [2021-10-29 04:56:40,039 INFO L226 Difference]: Without dead ends: 134 [2021-10-29 04:56:40,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 51.0s TimeCoverageRelationStatistics Valid=190, Invalid=819, Unknown=7, NotChecked=390, Total=1406 [2021-10-29 04:56:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-29 04:56:40,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 100. [2021-10-29 04:56:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:56:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2021-10-29 04:56:40,044 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 17 [2021-10-29 04:56:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:56:40,045 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2021-10-29 04:56:40,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:56:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2021-10-29 04:56:40,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:56:40,046 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:56:40,046 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:56:40,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 04:56:40,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-29 04:56:40,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 04:56:40,458 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 53 more)] === [2021-10-29 04:56:40,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:56:40,458 INFO L85 PathProgramCache]: Analyzing trace with hash 657868667, now seen corresponding path program 1 times [2021-10-29 04:56:40,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:56:40,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536563931] [2021-10-29 04:56:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:56:40,459 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:56:40,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:56:40,463 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:56:40,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 04:56:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:56:40,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-29 04:56:40,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:56:40,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:56:40,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:56:40,885 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 13 treesize of output 9 [2021-10-29 04:56:40,901 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 13 treesize of output 9 [2021-10-29 04:56:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:56:40,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:56:40,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:56:40,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:56:41,082 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:56:41,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-10-29 04:56:41,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-10-29 04:56:41,535 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:56:41,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-10-29 04:56:41,657 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:56:41,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-10-29 04:56:41,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-29 04:56:41,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-29 04:56:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:56:42,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:56:42,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:56:42,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-10-29 04:56:42,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:56:42,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-10-29 04:57:02,479 WARN L207 SmtUtils]: Spent 8.11 s on a formula simplification that was a NOOP. DAG size: 46 [2021-10-29 04:57:15,709 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_26 (_ BitVec 32))) (or (and (forall ((ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse1 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse1 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_16))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse3 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse4 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse5 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse6 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse2 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse2 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_13) .cse3 v_DerPreprocessor_14) .cse4 v_DerPreprocessor_15) .cse5 v_DerPreprocessor_16))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse6)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_26 (_ bv12 32)) (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_26 (store (store (store (store (select .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_26) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_9) .cse3 v_DerPreprocessor_10) .cse4 v_DerPreprocessor_11) .cse5 v_DerPreprocessor_12))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse6)))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_26)))))) is different from false [2021-10-29 04:58:44,838 WARN L207 SmtUtils]: Spent 1.48 m on a formula simplification that was a NOOP. DAG size: 1805 [2021-10-29 04:58:45,379 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:58:45,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536563931] [2021-10-29 04:58:45,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 04:58:45,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158885807] [2021-10-29 04:58:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:45,381 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:58:45,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:58:45,386 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:58:45,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-29 04:58:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:45,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-29 04:58:45,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:58:45,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:58:45,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:58:45,947 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 13 treesize of output 9 [2021-10-29 04:58:45,958 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 13 treesize of output 9 [2021-10-29 04:58:45,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:58:45,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:58:46,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:58:46,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:58:46,073 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-29 04:58:46,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-10-29 04:58:46,128 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:58:46,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-10-29 04:58:46,433 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:58:46,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-10-29 04:58:46,584 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:58:46,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-10-29 04:58:46,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-29 04:58:46,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-29 04:58:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:58:46,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:58:46,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:58:46,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-10-29 04:58:46,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:58:46,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-10-29 04:58:49,349 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_24)) c_ULTIMATE.start_insert_sub_~head.base) (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset)))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) .cse1 v_DerPreprocessor_22) .cse2 v_DerPreprocessor_23) .cse3 v_DerPreprocessor_24)) c_ULTIMATE.start_insert_sub_~head.base) .cse4) (_ bv4 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_17) .cse1 v_DerPreprocessor_18) .cse2 v_DerPreprocessor_19) .cse3 v_DerPreprocessor_20)) c_ULTIMATE.start_insert_sub_~head.base) .cse4)))))) is different from false [2021-10-29 04:58:51,629 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_27))))))) (and (forall ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse2 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) .cse0 v_DerPreprocessor_22) .cse1 v_DerPreprocessor_23) .cse2 v_DerPreprocessor_24)) c_ULTIMATE.start_create_sub_list_~sub.base) .cse3)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_17) .cse0 v_DerPreprocessor_18) .cse1 v_DerPreprocessor_19) .cse2 v_DerPreprocessor_20)) c_ULTIMATE.start_create_sub_list_~sub.base) .cse3))))) (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_24)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse4 (bvadd (_ bv4 32) .cse4))))))) is different from false [2021-10-29 04:58:54,032 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse0 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) .cse1 v_DerPreprocessor_22) .cse2 v_DerPreprocessor_23) .cse3 v_DerPreprocessor_24))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_27 (_ bv12 32)) (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.base)))) (store .cse5 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse5 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_17) .cse1 v_DerPreprocessor_18) .cse2 v_DerPreprocessor_19) .cse3 v_DerPreprocessor_20))) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4))))) (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (let ((.cse6 (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_create_sub_list_~sub.base) c_ULTIMATE.start_create_sub_list_~sub.offset c_ULTIMATE.start_create_sub_list_~sub.offset)))) (store .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_27 (store (store (store (store (select .cse7 v_ULTIMATE.start_insert_sub_~sub~0.base_27) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_21) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_24))) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse6 (bvadd (_ bv4 32) .cse6))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_27))))))))) is different from false [2021-10-29 04:58:56,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 04:58:56,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741813085] [2021-10-29 04:58:56,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:56,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:58:56,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:58:56,482 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:58:56,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-29 04:58:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:56,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-29 04:58:56,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:58:56,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-10-29 04:58:59,073 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 13 treesize of output 9 [2021-10-29 04:58:59,084 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 13 treesize of output 9 [2021-10-29 04:58:59,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:58:59,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:58:59,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:58:59,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-10-29 04:58:59,233 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-29 04:58:59,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-10-29 04:58:59,266 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:58:59,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-10-29 04:58:59,617 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:58:59,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 88 [2021-10-29 04:58:59,807 INFO L354 Elim1Store]: treesize reduction 516, result has 2.8 percent of original size [2021-10-29 04:58:59,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 40 [2021-10-29 04:58:59,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-29 04:58:59,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-29 04:58:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:58:59,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:59:00,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:59:00,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-10-29 04:59:00,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:59:00,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-10-29 04:59:02,646 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_29) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_30) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_31) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_32)) c_ULTIMATE.start_insert_sub_~head.base) (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset)))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd (_ bv4 32) c_ULTIMATE.start_insert_sub_~head.offset))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_29) .cse1 v_DerPreprocessor_30) .cse2 v_DerPreprocessor_31) .cse3 v_DerPreprocessor_32)) c_ULTIMATE.start_insert_sub_~head.base) .cse4)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_insert_sub_~sub~0.base) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_25) .cse1 v_DerPreprocessor_26) .cse2 v_DerPreprocessor_27) .cse3 v_DerPreprocessor_28)) c_ULTIMATE.start_insert_sub_~head.base) .cse4)))))) is different from false [2021-10-29 04:59:04,906 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_insert_sub_~sub~0.base_28 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_insert_sub_~sub~0.base_28)))) (and (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_28 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_28) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_29) (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32)) v_DerPreprocessor_30) (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_31) (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset) v_DerPreprocessor_32)) c_ULTIMATE.start_create_sub_list_~sub.base) (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_DerPreprocessor_31 (_ BitVec 32)) (v_DerPreprocessor_32 (_ BitVec 32)) (ULTIMATE.start_insert_sub_~sub~0.offset (_ BitVec 32)) (v_DerPreprocessor_30 (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_29 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (let ((.cse1 (bvadd ULTIMATE.start_insert_sub_~sub~0.offset (_ bv1 32))) (.cse2 (bvadd (_ bv2 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse3 (bvadd (_ bv3 32) ULTIMATE.start_insert_sub_~sub~0.offset)) (.cse4 (bvadd c_ULTIMATE.start_create_sub_list_~sub.offset (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_28 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_insert_sub_~sub~0.base_28) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_29) .cse1 v_DerPreprocessor_30) .cse2 v_DerPreprocessor_31) .cse3 v_DerPreprocessor_32)) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4)) (select (store |c_#length| v_ULTIMATE.start_insert_sub_~sub~0.base_28 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_28 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_insert_sub_~sub~0.base_28) ULTIMATE.start_insert_sub_~sub~0.offset v_DerPreprocessor_25) .cse1 v_DerPreprocessor_26) .cse2 v_DerPreprocessor_27) .cse3 v_DerPreprocessor_28)) c_ULTIMATE.start_create_sub_list_~sub.base) .cse4)))))))) is different from false [2021-10-29 04:59:12,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 04:59:12,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 04:59:40,631 WARN L207 SmtUtils]: Spent 28.45 s on a formula simplification that was a NOOP. DAG size: 1332 [2021-10-29 04:59:40,871 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-29 04:59:40,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 9330607 treesize of output 9330606 [2021-10-29 05:00:09,019 WARN L207 SmtUtils]: Spent 28.14 s on a formula simplification that was a NOOP. DAG size: 1331 [2021-10-29 05:00:35,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 05:00:35,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:35,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 05:00:35,940 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 05:00:35,940 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 05:00:35,946 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-29 05:00:35,948 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 05:00:35,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 05:00:35,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 05:00:35,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 05:00:35,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 05:00:35,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 05:00:35,949 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-29 05:00:35,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-29 05:00:35,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-29 05:00:35,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-29 05:00:35,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-29 05:00:35,950 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-29 05:00:35,951 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-29 05:00:35,951 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-29 05:00:35,951 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-29 05:00:35,951 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-29 05:00:35,951 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-29 05:00:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-29 05:00:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-29 05:00:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-29 05:00:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-29 05:00:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-29 05:00:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-29 05:00:35,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-29 05:00:35,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-29 05:00:35,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-29 05:00:35,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-29 05:00:35,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-29 05:00:35,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-29 05:00:35,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-29 05:00:35,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-29 05:00:35,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-29 05:00:35,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-29 05:00:35,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-29 05:00:35,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-10-29 05:00:35,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-29 05:00:35,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-29 05:00:35,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-29 05:00:35,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-29 05:00:35,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-10-29 05:00:35,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-10-29 05:00:35,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-29 05:00:35,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-29 05:00:35,956 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-10-29 05:00:35,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-29 05:00:35,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-29 05:00:35,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-10-29 05:00:35,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-29 05:00:35,957 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-10-29 05:00:35,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:00:35,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:00:35,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:00:35,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:00:35,958 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:00:35,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 05:00:35,959 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:00:36,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:36,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:36,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-29 05:00:36,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:36,589 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:36,592 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:00:36,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:00:36 BoogieIcfgContainer [2021-10-29 05:00:36,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:00:36,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:00:36,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:00:36,602 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:00:36,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:55:09" (3/4) ... [2021-10-29 05:00:36,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:00:36,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:00:36,606 INFO L168 Benchmark]: Toolchain (without parser) took 328438.00 ms. Allocated memory was 83.9 MB in the beginning and 448.8 MB in the end (delta: 364.9 MB). Free memory was 59.7 MB in the beginning and 179.4 MB in the end (delta: -119.7 MB). Peak memory consumption was 243.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:36,606 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory is still 34.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:36,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.65 ms. Allocated memory is still 83.9 MB. Free memory was 59.5 MB in the beginning and 54.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:36,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.15 ms. Allocated memory is still 83.9 MB. Free memory was 54.0 MB in the beginning and 51.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:36,607 INFO L168 Benchmark]: Boogie Preprocessor took 45.00 ms. Allocated memory is still 83.9 MB. Free memory was 51.6 MB in the beginning and 49.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:36,607 INFO L168 Benchmark]: RCFGBuilder took 1077.07 ms. Allocated memory is still 83.9 MB. Free memory was 49.1 MB in the beginning and 45.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:36,608 INFO L168 Benchmark]: TraceAbstraction took 326625.18 ms. Allocated memory was 83.9 MB in the beginning and 448.8 MB in the end (delta: 364.9 MB). Free memory was 45.0 MB in the beginning and 179.9 MB in the end (delta: -134.9 MB). Peak memory consumption was 263.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:36,608 INFO L168 Benchmark]: Witness Printer took 3.41 ms. Allocated memory is still 448.8 MB. Free memory was 179.9 MB in the beginning and 179.4 MB in the end (delta: 511.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:36,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory is still 34.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 613.65 ms. Allocated memory is still 83.9 MB. Free memory was 59.5 MB in the beginning and 54.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.15 ms. Allocated memory is still 83.9 MB. Free memory was 54.0 MB in the beginning and 51.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.00 ms. Allocated memory is still 83.9 MB. Free memory was 51.6 MB in the beginning and 49.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1077.07 ms. Allocated memory is still 83.9 MB. Free memory was 49.1 MB in the beginning and 45.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 326625.18 ms. Allocated memory was 83.9 MB in the beginning and 448.8 MB in the end (delta: 364.9 MB). Free memory was 45.0 MB in the beginning and 179.9 MB in the end (delta: -134.9 MB). Peak memory consumption was 263.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.41 ms. Allocated memory is still 448.8 MB. Free memory was 179.9 MB in the beginning and 179.4 MB in the end (delta: 511.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L601] struct list_head top = { &(top), &(top) }; [L586] struct top_list *top = malloc(sizeof(*top)); [L587] COND FALSE !(!top) [L578] sub->prev = sub [L579] sub->next = sub [L570] struct sub_list *sub = malloc(sizeof(*sub)); [L571] COND FALSE !(!sub) [L573] sub->number = 0 [L538] head->prev [L531] next->prev = new [L532] new->next = next [L533] new->prev = prev [L534] prev->next = new - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 579]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 532]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 599]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 57 error locations. Started 1 CEGAR loops. OverallTime: 326.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 52.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 788 SDtfs, 2795 SDslu, 1304 SDs, 0 SdLazy, 2063 SolverSat, 196 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 200 SyntacticMatches, 8 SemanticMatches, 116 ConstructedPredicates, 6 IntricatePredicates, 2 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 62.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=0, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 283 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 157.6s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 280 ConstructedInterpolants, 24 QuantifiedInterpolants, 2330 SizeOfPredicates, 119 NumberOfNonLiveVariables, 1289 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:00:36,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682b0dbc-d390-4704-809a-b5a4738b2f90/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...