./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 ............................................................................................................................................ 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_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:12:47,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:12:47,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:12:47,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:12:47,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:12:47,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:12:47,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:12:47,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:12:47,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:12:47,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:12:47,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:12:47,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:12:47,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:12:47,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:12:47,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:12:47,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:12:47,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:12:47,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:12:47,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:12:47,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:12:47,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:12:47,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:12:47,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:12:47,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:12:47,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:12:47,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:12:47,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:12:47,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:12:47,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:12:47,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:12:47,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:12:47,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:12:47,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:12:47,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:12:47,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:12:47,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:12:47,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:12:47,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:12:47,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:12:47,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:12:47,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:12:47,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:12:47,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:12:47,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:12:47,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:12:47,600 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:12:47,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:12:47,601 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:12:47,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:12:47,601 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:12:47,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:12:47,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:12:47,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:12:47,603 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:12:47,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:12:47,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:12:47,604 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:12:47,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:12:47,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:12:47,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:12:47,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:12:47,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:12:47,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:12:47,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:12:47,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:12:47,607 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:12:47,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:12:47,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:12:47,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:12:47,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:12:47,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:12:47,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:12:47,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:12:47,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:12:47,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:12:47,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:12:47,611 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:12:47,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:12:47,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:12:47,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:12:47,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:12:47,612 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_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 [2021-10-20 05:12:47,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:12:47,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:12:47,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:12:47,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:12:47,981 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:12:47,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-10-20 05:12:48,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/98a0b5c6f/48ae315b3ce4400bbb0ca2787eeeebae/FLAG941cbe062 [2021-10-20 05:12:48,904 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:12:48,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-10-20 05:12:48,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/98a0b5c6f/48ae315b3ce4400bbb0ca2787eeeebae/FLAG941cbe062 [2021-10-20 05:12:49,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/98a0b5c6f/48ae315b3ce4400bbb0ca2787eeeebae [2021-10-20 05:12:49,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:12:49,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:12:49,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:49,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:12:49,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:12:49,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:49" (1/1) ... [2021-10-20 05:12:49,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fd0e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:49, skipping insertion in model container [2021-10-20 05:12:49,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:49" (1/1) ... [2021-10-20 05:12:49,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:12:49,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:12:49,372 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-10-20 05:12:49,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:49,850 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) [2021-10-20 05:12:49,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40b090c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:49, skipping insertion in model container [2021-10-20 05:12:49,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:49,854 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:12:49,858 INFO L168 Benchmark]: Toolchain (without parser) took 840.43 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 54.9 MB in the beginning and 80.9 MB in the end (delta: -26.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:12:49,860 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 64.0 MB in the beginning and 63.9 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:12:49,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 832.26 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 54.7 MB in the beginning and 80.9 MB in the end (delta: -26.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:12:49,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 64.0 MB in the beginning and 63.9 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 832.26 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 54.7 MB in the beginning and 80.9 MB in the end (delta: -26.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 174]: 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-e943c26 [2021-10-20 05:12:52,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:12:52,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:12:52,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:12:52,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:12:52,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:12:52,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:12:52,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:12:52,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:12:52,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:12:52,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:12:52,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:12:52,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:12:52,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:12:52,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:12:52,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:12:52,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:12:52,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:12:52,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:12:52,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:12:52,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:12:52,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:12:52,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:12:52,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:12:52,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:12:52,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:12:52,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:12:52,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:12:52,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:12:52,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:12:52,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:12:52,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:12:52,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:12:52,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:12:52,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:12:52,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:12:52,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:12:52,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:12:52,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:12:52,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:12:52,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:12:52,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:12:52,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:12:52,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:12:52,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:12:52,964 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:12:52,964 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:12:52,964 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:12:52,965 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:12:52,965 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:12:52,965 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:12:52,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:12:52,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:12:52,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:12:52,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:12:52,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:12:52,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:12:52,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:12:52,970 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:12:52,971 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:12:52,971 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:12:52,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:12:52,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:12:52,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:12:52,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:12:52,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:12:52,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:12:52,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:12:52,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:12:52,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:12:52,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:12:52,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:12:52,974 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:12:52,975 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:12:52,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:12:52,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:12:52,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:12:52,976 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_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac360da941eb2bc713d1cdb41b6939d6a50ea394a41fda87a7330709a6b33058 [2021-10-20 05:12:53,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:12:53,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:12:53,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:12:53,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:12:53,482 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:12:53,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-10-20 05:12:53,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/9b0d6bfc9/a04921f3bf6e4bee8f3ffdc0ce276cd4/FLAGdb93c1239 [2021-10-20 05:12:54,466 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:12:54,472 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c [2021-10-20 05:12:54,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/9b0d6bfc9/a04921f3bf6e4bee8f3ffdc0ce276cd4/FLAGdb93c1239 [2021-10-20 05:12:54,585 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/data/9b0d6bfc9/a04921f3bf6e4bee8f3ffdc0ce276cd4 [2021-10-20 05:12:54,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:12:54,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:12:54,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:54,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:12:54,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:12:54,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:54" (1/1) ... [2021-10-20 05:12:54,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38166aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:54, skipping insertion in model container [2021-10-20 05:12:54,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:54" (1/1) ... [2021-10-20 05:12:54,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:12:54,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:12:54,932 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-10-20 05:12:55,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:55,514 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:12:55,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:12:55,548 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-10-20 05:12:55,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:55,684 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:12:55,702 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/sv-benchmarks/c/product-lines/email_spec0_product10.cil.c[2842,2855] [2021-10-20 05:12:55,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:55,852 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:12:55,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55 WrapperNode [2021-10-20 05:12:55,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:55,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:12:55,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:12:55,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:12:55,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:55,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:12:56,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:12:56,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:12:56,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:12:56,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:12:56,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:12:56,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:12:56,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:12:56,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (1/1) ... [2021-10-20 05:12:56,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:12:56,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:12:56,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:12:56,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:12:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-20 05:12:56,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:12:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:12:56,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:12:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:13:00,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:13:00,004 INFO L299 CfgBuilder]: Removed 155 assume(true) statements. [2021-10-20 05:13:00,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:00 BoogieIcfgContainer [2021-10-20 05:13:00,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:13:00,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:13:00,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:13:00,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:13:00,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:12:54" (1/3) ... [2021-10-20 05:13:00,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a8332e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:13:00, skipping insertion in model container [2021-10-20 05:13:00,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:55" (2/3) ... [2021-10-20 05:13:00,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a8332e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:13:00, skipping insertion in model container [2021-10-20 05:13:00,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:00" (3/3) ... [2021-10-20 05:13:00,017 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product10.cil.c [2021-10-20 05:13:00,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:13:00,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-20 05:13:00,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:13:00,109 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:13:00,110 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-20 05:13:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 159 states have (on average 1.6540880503144655) internal successors, (263), 161 states have internal predecessors, (263), 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) [2021-10-20 05:13:00,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-20 05:13:00,147 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:00,148 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:00,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:00,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1170669752, now seen corresponding path program 1 times [2021-10-20 05:13:00,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:00,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293205743] [2021-10-20 05:13:00,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:00,177 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:00,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:00,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:13:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:00,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:13:00,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:00,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:00,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:01,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:01,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:01,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293205743] [2021-10-20 05:13:01,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293205743] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:01,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:01,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:13:01,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741282980] [2021-10-20 05:13:01,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:13:01,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:01,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:13:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:13:01,165 INFO L87 Difference]: Start difference. First operand has 162 states, 159 states have (on average 1.6540880503144655) internal successors, (263), 161 states have internal predecessors, (263), 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-10-20 05:13:01,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:01,231 INFO L93 Difference]: Finished difference Result 273 states and 434 transitions. [2021-10-20 05:13:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:13:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2021-10-20 05:13:01,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:01,253 INFO L225 Difference]: With dead ends: 273 [2021-10-20 05:13:01,253 INFO L226 Difference]: Without dead ends: 146 [2021-10-20 05:13:01,258 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:13:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-20 05:13:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-10-20 05:13:01,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.625) internal successors, (234), 145 states have internal predecessors, (234), 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) [2021-10-20 05:13:01,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 234 transitions. [2021-10-20 05:13:01,341 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 234 transitions. Word has length 38 [2021-10-20 05:13:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:01,342 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 234 transitions. [2021-10-20 05:13:01,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-10-20 05:13:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 234 transitions. [2021-10-20 05:13:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-20 05:13:01,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:01,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:01,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-20 05:13:01,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:01,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:01,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:01,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1521803372, now seen corresponding path program 1 times [2021-10-20 05:13:01,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:01,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114578875] [2021-10-20 05:13:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:01,567 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:01,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:01,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:01,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:13:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:01,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 05:13:01,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:02,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:02,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:02,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114578875] [2021-10-20 05:13:02,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114578875] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:02,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:02,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:13:02,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930103495] [2021-10-20 05:13:02,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:02,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:02,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:02,271 INFO L87 Difference]: Start difference. First operand 146 states and 234 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-10-20 05:13:02,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:02,375 INFO L93 Difference]: Finished difference Result 412 states and 661 transitions. [2021-10-20 05:13:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:02,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 39 [2021-10-20 05:13:02,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:02,382 INFO L225 Difference]: With dead ends: 412 [2021-10-20 05:13:02,383 INFO L226 Difference]: Without dead ends: 277 [2021-10-20 05:13:02,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:02,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-20 05:13:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 145. [2021-10-20 05:13:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.6013986013986015) internal successors, (229), 144 states have internal predecessors, (229), 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) [2021-10-20 05:13:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 229 transitions. [2021-10-20 05:13:02,436 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 229 transitions. Word has length 39 [2021-10-20 05:13:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:02,437 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 229 transitions. [2021-10-20 05:13:02,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-10-20 05:13:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 229 transitions. [2021-10-20 05:13:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-20 05:13:02,445 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:02,446 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:02,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:02,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:02,661 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:02,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1989218279, now seen corresponding path program 1 times [2021-10-20 05:13:02,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:02,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713980280] [2021-10-20 05:13:02,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:02,664 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:02,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:02,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:13:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 05:13:03,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:03,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:03,384 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:03,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713980280] [2021-10-20 05:13:03,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713980280] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:03,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:03,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:13:03,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376352970] [2021-10-20 05:13:03,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:03,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:03,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:03,389 INFO L87 Difference]: Start difference. First operand 145 states and 229 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-10-20 05:13:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:03,444 INFO L93 Difference]: Finished difference Result 283 states and 448 transitions. [2021-10-20 05:13:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:03,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 41 [2021-10-20 05:13:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:03,447 INFO L225 Difference]: With dead ends: 283 [2021-10-20 05:13:03,447 INFO L226 Difference]: Without dead ends: 146 [2021-10-20 05:13:03,449 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:03,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-20 05:13:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2021-10-20 05:13:03,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.5804195804195804) internal successors, (226), 144 states have internal predecessors, (226), 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) [2021-10-20 05:13:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 226 transitions. [2021-10-20 05:13:03,475 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 226 transitions. Word has length 41 [2021-10-20 05:13:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:03,476 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 226 transitions. [2021-10-20 05:13:03,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-10-20 05:13:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 226 transitions. [2021-10-20 05:13:03,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-20 05:13:03,484 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:03,484 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:03,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:03,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:03,701 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:03,701 INFO L82 PathProgramCache]: Analyzing trace with hash -559359774, now seen corresponding path program 1 times [2021-10-20 05:13:03,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:03,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774234148] [2021-10-20 05:13:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:03,703 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:03,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:03,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:03,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:13:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:04,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:04,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:04,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:04,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:04,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774234148] [2021-10-20 05:13:04,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774234148] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:04,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:04,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:13:04,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488351493] [2021-10-20 05:13:04,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:04,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:04,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:04,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:04,532 INFO L87 Difference]: Start difference. First operand 145 states and 226 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-20 05:13:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:04,580 INFO L93 Difference]: Finished difference Result 370 states and 581 transitions. [2021-10-20 05:13:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:04,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 42 [2021-10-20 05:13:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:04,584 INFO L225 Difference]: With dead ends: 370 [2021-10-20 05:13:04,584 INFO L226 Difference]: Without dead ends: 275 [2021-10-20 05:13:04,585 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:04,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-20 05:13:04,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 180. [2021-10-20 05:13:04,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.6235955056179776) internal successors, (289), 179 states have internal predecessors, (289), 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) [2021-10-20 05:13:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 289 transitions. [2021-10-20 05:13:04,606 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 289 transitions. Word has length 42 [2021-10-20 05:13:04,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:04,607 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 289 transitions. [2021-10-20 05:13:04,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-20 05:13:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 289 transitions. [2021-10-20 05:13:04,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-20 05:13:04,609 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:04,610 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:04,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:04,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:04,824 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:04,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:04,825 INFO L82 PathProgramCache]: Analyzing trace with hash 358260290, now seen corresponding path program 1 times [2021-10-20 05:13:04,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:04,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132749137] [2021-10-20 05:13:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:04,826 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:04,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:04,828 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:04,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:13:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:05,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:05,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:05,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:05,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:05,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132749137] [2021-10-20 05:13:05,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132749137] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:05,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:05,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:13:05,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727768391] [2021-10-20 05:13:05,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:05,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:05,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:05,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:05,598 INFO L87 Difference]: Start difference. First operand 180 states and 289 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-10-20 05:13:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:05,676 INFO L93 Difference]: Finished difference Result 594 states and 964 transitions. [2021-10-20 05:13:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 52 [2021-10-20 05:13:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:05,681 INFO L225 Difference]: With dead ends: 594 [2021-10-20 05:13:05,682 INFO L226 Difference]: Without dead ends: 466 [2021-10-20 05:13:05,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-10-20 05:13:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 242. [2021-10-20 05:13:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 1.6833333333333333) internal successors, (404), 241 states have internal predecessors, (404), 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) [2021-10-20 05:13:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 404 transitions. [2021-10-20 05:13:05,712 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 404 transitions. Word has length 52 [2021-10-20 05:13:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:05,712 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 404 transitions. [2021-10-20 05:13:05,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-10-20 05:13:05,713 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 404 transitions. [2021-10-20 05:13:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-20 05:13:05,714 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:05,714 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:05,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:05,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:05,928 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:05,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1312991971, now seen corresponding path program 1 times [2021-10-20 05:13:05,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:05,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57463027] [2021-10-20 05:13:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:05,930 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:05,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:05,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:05,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:13:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:06,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:06,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:06,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:06,725 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:06,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57463027] [2021-10-20 05:13:06,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57463027] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:06,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:06,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:13:06,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206838774] [2021-10-20 05:13:06,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:13:06,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:13:06,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:06,728 INFO L87 Difference]: Start difference. First operand 242 states and 404 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-10-20 05:13:06,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:06,772 INFO L93 Difference]: Finished difference Result 466 states and 755 transitions. [2021-10-20 05:13:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:13:06,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2021-10-20 05:13:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:06,776 INFO L225 Difference]: With dead ends: 466 [2021-10-20 05:13:06,776 INFO L226 Difference]: Without dead ends: 309 [2021-10-20 05:13:06,777 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-10-20 05:13:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 214. [2021-10-20 05:13:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 1.6415094339622642) internal successors, (348), 213 states have internal predecessors, (348), 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) [2021-10-20 05:13:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 348 transitions. [2021-10-20 05:13:06,802 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 348 transitions. Word has length 54 [2021-10-20 05:13:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:06,803 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 348 transitions. [2021-10-20 05:13:06,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-10-20 05:13:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 348 transitions. [2021-10-20 05:13:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-20 05:13:06,805 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:06,805 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:06,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-20 05:13:07,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:07,022 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:07,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:07,022 INFO L82 PathProgramCache]: Analyzing trace with hash 663544003, now seen corresponding path program 1 times [2021-10-20 05:13:07,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:07,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578902110] [2021-10-20 05:13:07,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:07,023 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:07,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:07,024 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:07,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-20 05:13:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:07,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:07,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:07,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:07,893 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:07,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578902110] [2021-10-20 05:13:07,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578902110] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:07,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:07,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:13:07,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366235450] [2021-10-20 05:13:07,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:13:07,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:07,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:13:07,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:07,896 INFO L87 Difference]: Start difference. First operand 214 states and 348 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-10-20 05:13:07,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:07,947 INFO L93 Difference]: Finished difference Result 550 states and 907 transitions. [2021-10-20 05:13:07,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:13:07,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 54 [2021-10-20 05:13:07,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:07,952 INFO L225 Difference]: With dead ends: 550 [2021-10-20 05:13:07,952 INFO L226 Difference]: Without dead ends: 366 [2021-10-20 05:13:07,953 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:07,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-20 05:13:07,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 271. [2021-10-20 05:13:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 269 states have (on average 1.6691449814126393) internal successors, (449), 270 states have internal predecessors, (449), 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) [2021-10-20 05:13:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 449 transitions. [2021-10-20 05:13:07,986 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 449 transitions. Word has length 54 [2021-10-20 05:13:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:07,986 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 449 transitions. [2021-10-20 05:13:07,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-10-20 05:13:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 449 transitions. [2021-10-20 05:13:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-20 05:13:07,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:07,988 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:08,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:08,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:08,205 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2045513071, now seen corresponding path program 1 times [2021-10-20 05:13:08,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:08,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636270978] [2021-10-20 05:13:08,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:08,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:08,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:08,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:08,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-20 05:13:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:08,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:08,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:08,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:09,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:09,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636270978] [2021-10-20 05:13:09,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636270978] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:09,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:09,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-20 05:13:09,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768902182] [2021-10-20 05:13:09,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 05:13:09,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:09,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 05:13:09,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:13:09,163 INFO L87 Difference]: Start difference. First operand 271 states and 449 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2021-10-20 05:13:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:11,323 INFO L93 Difference]: Finished difference Result 639 states and 1062 transitions. [2021-10-20 05:13:11,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:11,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 55 [2021-10-20 05:13:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:11,328 INFO L225 Difference]: With dead ends: 639 [2021-10-20 05:13:11,328 INFO L226 Difference]: Without dead ends: 420 [2021-10-20 05:13:11,329 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 64.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:13:11,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-10-20 05:13:11,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 268. [2021-10-20 05:13:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 266 states have (on average 1.6428571428571428) internal successors, (437), 267 states have internal predecessors, (437), 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) [2021-10-20 05:13:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 437 transitions. [2021-10-20 05:13:11,367 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 437 transitions. Word has length 55 [2021-10-20 05:13:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:11,368 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 437 transitions. [2021-10-20 05:13:11,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2021-10-20 05:13:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 437 transitions. [2021-10-20 05:13:11,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-20 05:13:11,370 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:11,370 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:11,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:11,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:11,587 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:11,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:11,588 INFO L82 PathProgramCache]: Analyzing trace with hash -626013561, now seen corresponding path program 1 times [2021-10-20 05:13:11,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:11,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5244762] [2021-10-20 05:13:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:11,588 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:11,589 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:11,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-20 05:13:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:12,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:12,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:12,395 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:12,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:12,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:12,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5244762] [2021-10-20 05:13:12,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5244762] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:13:12,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [454241676] [2021-10-20 05:13:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:12,639 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:13:12,646 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:13:12,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-20 05:13:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:13,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-20 05:13:13,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:13,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:14,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [454241676] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:14,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:13:14,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [5, 5] total 22 [2021-10-20 05:13:14,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477493268] [2021-10-20 05:13:14,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-20 05:13:14,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:14,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-20 05:13:14,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-10-20 05:13:14,159 INFO L87 Difference]: Start difference. First operand 268 states and 437 transitions. Second operand has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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) [2021-10-20 05:13:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:21,791 INFO L93 Difference]: Finished difference Result 1840 states and 2724 transitions. [2021-10-20 05:13:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-20 05:13:21,792 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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 55 [2021-10-20 05:13:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:21,806 INFO L225 Difference]: With dead ends: 1840 [2021-10-20 05:13:21,806 INFO L226 Difference]: Without dead ends: 1766 [2021-10-20 05:13:21,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2156 ImplicationChecksByTransitivity, 2860.1ms TimeCoverageRelationStatistics Valid=1702, Invalid=6130, Unknown=0, NotChecked=0, Total=7832 [2021-10-20 05:13:21,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-10-20 05:13:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 345. [2021-10-20 05:13:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 343 states have (on average 1.597667638483965) internal successors, (548), 344 states have internal predecessors, (548), 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) [2021-10-20 05:13:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 548 transitions. [2021-10-20 05:13:21,876 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 548 transitions. Word has length 55 [2021-10-20 05:13:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:21,876 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 548 transitions. [2021-10-20 05:13:21,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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) [2021-10-20 05:13:21,877 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 548 transitions. [2021-10-20 05:13:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-20 05:13:21,878 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:21,878 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:21,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:22,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:22,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:22,296 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:22,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:22,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1977535086, now seen corresponding path program 1 times [2021-10-20 05:13:22,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:22,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230341788] [2021-10-20 05:13:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:22,297 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:22,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:22,298 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:22,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-20 05:13:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:22,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:22,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:22,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:23,214 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:23,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230341788] [2021-10-20 05:13:23,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230341788] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:13:23,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1648739694] [2021-10-20 05:13:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:23,214 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:23,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:13:23,223 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:13:23,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-20 05:13:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:23,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-20 05:13:23,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:24,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:24,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1648739694] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:24,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:13:24,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [5, 5] total 22 [2021-10-20 05:13:24,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536513430] [2021-10-20 05:13:24,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-20 05:13:24,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-20 05:13:24,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-10-20 05:13:24,687 INFO L87 Difference]: Start difference. First operand 345 states and 548 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 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) [2021-10-20 05:13:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:32,826 INFO L93 Difference]: Finished difference Result 2274 states and 3293 transitions. [2021-10-20 05:13:32,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-10-20 05:13:32,827 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 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 56 [2021-10-20 05:13:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:32,844 INFO L225 Difference]: With dead ends: 2274 [2021-10-20 05:13:32,844 INFO L226 Difference]: Without dead ends: 2172 [2021-10-20 05:13:32,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3137 ImplicationChecksByTransitivity, 3157.8ms TimeCoverageRelationStatistics Valid=2353, Invalid=8359, Unknown=0, NotChecked=0, Total=10712 [2021-10-20 05:13:32,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2021-10-20 05:13:32,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 453. [2021-10-20 05:13:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 451 states have (on average 1.5698447893569845) internal successors, (708), 452 states have internal predecessors, (708), 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) [2021-10-20 05:13:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 708 transitions. [2021-10-20 05:13:32,946 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 708 transitions. Word has length 56 [2021-10-20 05:13:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:32,948 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 708 transitions. [2021-10-20 05:13:32,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 16 states have internal predecessors, (91), 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) [2021-10-20 05:13:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 708 transitions. [2021-10-20 05:13:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-20 05:13:32,950 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:32,950 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:32,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:33,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:33,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:33,367 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:33,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1899401231, now seen corresponding path program 1 times [2021-10-20 05:13:33,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:33,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728834317] [2021-10-20 05:13:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:33,368 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:33,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:33,369 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:33,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-20 05:13:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:33,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:33,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:34,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:34,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:34,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728834317] [2021-10-20 05:13:34,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728834317] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:13:34,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1330487801] [2021-10-20 05:13:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:34,342 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:34,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:13:34,344 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:13:34,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-20 05:13:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:35,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-20 05:13:35,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:35,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:35,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1330487801] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:35,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:13:35,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5, 5] total 12 [2021-10-20 05:13:35,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815233431] [2021-10-20 05:13:35,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-20 05:13:35,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:35,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-20 05:13:35,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-10-20 05:13:35,445 INFO L87 Difference]: Start difference. First operand 453 states and 708 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-10-20 05:13:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:35,634 INFO L93 Difference]: Finished difference Result 713 states and 1086 transitions. [2021-10-20 05:13:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 05:13:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 56 [2021-10-20 05:13:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:35,643 INFO L225 Difference]: With dead ends: 713 [2021-10-20 05:13:35,643 INFO L226 Difference]: Without dead ends: 481 [2021-10-20 05:13:35,646 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-10-20 05:13:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-10-20 05:13:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 398. [2021-10-20 05:13:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 396 states have (on average 1.5681818181818181) internal successors, (621), 397 states have internal predecessors, (621), 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) [2021-10-20 05:13:35,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 621 transitions. [2021-10-20 05:13:35,751 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 621 transitions. Word has length 56 [2021-10-20 05:13:35,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:35,753 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 621 transitions. [2021-10-20 05:13:35,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-10-20 05:13:35,754 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 621 transitions. [2021-10-20 05:13:35,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-20 05:13:35,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:35,755 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:35,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:35,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-20 05:13:36,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:36,165 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:36,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1757108711, now seen corresponding path program 1 times [2021-10-20 05:13:36,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:36,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924342127] [2021-10-20 05:13:36,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:36,167 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:36,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:36,168 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:36,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-20 05:13:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:36,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:36,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:36,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:37,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:37,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924342127] [2021-10-20 05:13:37,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924342127] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:13:37,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [995895463] [2021-10-20 05:13:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:37,138 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:37,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:13:37,139 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:13:37,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-20 05:13:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:37,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 05:13:37,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:38,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:38,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [995895463] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:38,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:13:38,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 11 [2021-10-20 05:13:38,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141732083] [2021-10-20 05:13:38,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-20 05:13:38,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:38,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-20 05:13:38,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-20 05:13:38,342 INFO L87 Difference]: Start difference. First operand 398 states and 621 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:38,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:38,705 INFO L93 Difference]: Finished difference Result 1081 states and 1657 transitions. [2021-10-20 05:13:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 05:13:38,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-20 05:13:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:38,719 INFO L225 Difference]: With dead ends: 1081 [2021-10-20 05:13:38,719 INFO L226 Difference]: Without dead ends: 910 [2021-10-20 05:13:38,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-10-20 05:13:38,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-10-20 05:13:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 708. [2021-10-20 05:13:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 706 states have (on average 1.5722379603399435) internal successors, (1110), 707 states have internal predecessors, (1110), 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) [2021-10-20 05:13:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1110 transitions. [2021-10-20 05:13:38,872 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1110 transitions. Word has length 57 [2021-10-20 05:13:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:38,872 INFO L470 AbstractCegarLoop]: Abstraction has 708 states and 1110 transitions. [2021-10-20 05:13:38,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:38,873 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1110 transitions. [2021-10-20 05:13:38,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-20 05:13:38,879 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:38,879 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:38,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:39,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:39,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:39,299 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:39,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:39,299 INFO L82 PathProgramCache]: Analyzing trace with hash -949174019, now seen corresponding path program 1 times [2021-10-20 05:13:39,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:39,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457899186] [2021-10-20 05:13:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:39,300 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:39,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:39,302 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:39,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-20 05:13:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:39,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:39,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:40,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:40,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:40,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457899186] [2021-10-20 05:13:40,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457899186] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:13:40,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [738156781] [2021-10-20 05:13:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:40,325 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:40,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:13:40,326 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:13:40,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-20 05:13:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:41,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:41,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:41,313 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:41,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:41,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:41,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [738156781] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:41,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:13:41,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 10 [2021-10-20 05:13:41,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091366336] [2021-10-20 05:13:41,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:41,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:41,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:41,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-20 05:13:41,460 INFO L87 Difference]: Start difference. First operand 708 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-10-20 05:13:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:41,686 INFO L93 Difference]: Finished difference Result 974 states and 1486 transitions. [2021-10-20 05:13:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 58 [2021-10-20 05:13:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:41,693 INFO L225 Difference]: With dead ends: 974 [2021-10-20 05:13:41,693 INFO L226 Difference]: Without dead ends: 690 [2021-10-20 05:13:41,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 72.9ms TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-10-20 05:13:41,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-20 05:13:41,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 547. [2021-10-20 05:13:41,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 545 states have (on average 1.5908256880733944) internal successors, (867), 546 states have internal predecessors, (867), 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) [2021-10-20 05:13:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 867 transitions. [2021-10-20 05:13:41,805 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 867 transitions. Word has length 58 [2021-10-20 05:13:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:41,805 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 867 transitions. [2021-10-20 05:13:41,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-10-20 05:13:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 867 transitions. [2021-10-20 05:13:41,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-20 05:13:41,812 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:41,813 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:41,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:42,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:42,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:42,233 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:42,233 INFO L82 PathProgramCache]: Analyzing trace with hash 596644252, now seen corresponding path program 1 times [2021-10-20 05:13:42,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:42,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274967572] [2021-10-20 05:13:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:42,234 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:42,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:42,236 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:42,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-20 05:13:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:42,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:42,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:43,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:43,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:43,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274967572] [2021-10-20 05:13:43,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274967572] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:43,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:43,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:13:43,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945976868] [2021-10-20 05:13:43,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:13:43,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:43,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:13:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:43,330 INFO L87 Difference]: Start difference. First operand 547 states and 867 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-10-20 05:13:43,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:43,462 INFO L93 Difference]: Finished difference Result 1544 states and 2465 transitions. [2021-10-20 05:13:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:13:43,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 63 [2021-10-20 05:13:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:43,468 INFO L225 Difference]: With dead ends: 1544 [2021-10-20 05:13:43,469 INFO L226 Difference]: Without dead ends: 1030 [2021-10-20 05:13:43,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:43,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2021-10-20 05:13:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 777. [2021-10-20 05:13:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 775 states have (on average 1.6361290322580646) internal successors, (1268), 776 states have internal predecessors, (1268), 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) [2021-10-20 05:13:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1268 transitions. [2021-10-20 05:13:43,565 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1268 transitions. Word has length 63 [2021-10-20 05:13:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:43,565 INFO L470 AbstractCegarLoop]: Abstraction has 777 states and 1268 transitions. [2021-10-20 05:13:43,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-10-20 05:13:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1268 transitions. [2021-10-20 05:13:43,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-20 05:13:43,568 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:43,568 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:43,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:43,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:43,786 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1480771081, now seen corresponding path program 1 times [2021-10-20 05:13:43,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:43,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116339061] [2021-10-20 05:13:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:43,787 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:43,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:43,788 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:43,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-20 05:13:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:44,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:44,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:44,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:44,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:44,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116339061] [2021-10-20 05:13:44,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116339061] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:44,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:44,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:13:44,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420046955] [2021-10-20 05:13:44,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:13:44,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:13:44,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:44,915 INFO L87 Difference]: Start difference. First operand 777 states and 1268 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-10-20 05:13:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:45,163 INFO L93 Difference]: Finished difference Result 2220 states and 3646 transitions. [2021-10-20 05:13:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:13:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 64 [2021-10-20 05:13:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:45,176 INFO L225 Difference]: With dead ends: 2220 [2021-10-20 05:13:45,176 INFO L226 Difference]: Without dead ends: 1480 [2021-10-20 05:13:45,183 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-10-20 05:13:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1227. [2021-10-20 05:13:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1225 states have (on average 1.6693877551020408) internal successors, (2045), 1226 states have internal predecessors, (2045), 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) [2021-10-20 05:13:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 2045 transitions. [2021-10-20 05:13:45,378 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 2045 transitions. Word has length 64 [2021-10-20 05:13:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:45,378 INFO L470 AbstractCegarLoop]: Abstraction has 1227 states and 2045 transitions. [2021-10-20 05:13:45,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-10-20 05:13:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 2045 transitions. [2021-10-20 05:13:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-20 05:13:45,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:45,387 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:45,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:45,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:45,588 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:45,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:45,589 INFO L82 PathProgramCache]: Analyzing trace with hash -246111330, now seen corresponding path program 1 times [2021-10-20 05:13:45,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:45,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655368182] [2021-10-20 05:13:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:45,590 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:45,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:45,591 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:45,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-20 05:13:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:46,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:46,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:46,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:13:46,808 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:46,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655368182] [2021-10-20 05:13:46,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655368182] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:46,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:46,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:13:46,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746500473] [2021-10-20 05:13:46,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:13:46,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:46,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:13:46,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:46,810 INFO L87 Difference]: Start difference. First operand 1227 states and 2045 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:47,044 INFO L93 Difference]: Finished difference Result 3548 states and 5939 transitions. [2021-10-20 05:13:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:13:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-10-20 05:13:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:47,061 INFO L225 Difference]: With dead ends: 3548 [2021-10-20 05:13:47,061 INFO L226 Difference]: Without dead ends: 2362 [2021-10-20 05:13:47,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:13:47,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-10-20 05:13:47,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2109. [2021-10-20 05:13:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2107 states have (on average 1.684859990507831) internal successors, (3550), 2108 states have internal predecessors, (3550), 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) [2021-10-20 05:13:47,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3550 transitions. [2021-10-20 05:13:47,358 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3550 transitions. Word has length 65 [2021-10-20 05:13:47,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:47,359 INFO L470 AbstractCegarLoop]: Abstraction has 2109 states and 3550 transitions. [2021-10-20 05:13:47,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:47,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3550 transitions. [2021-10-20 05:13:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-20 05:13:47,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:47,365 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:47,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:47,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:47,583 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:47,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:47,584 INFO L82 PathProgramCache]: Analyzing trace with hash 283992071, now seen corresponding path program 1 times [2021-10-20 05:13:47,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:47,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135304320] [2021-10-20 05:13:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:47,585 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:47,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:47,586 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:47,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-20 05:13:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:48,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:48,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:48,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:48,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:48,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135304320] [2021-10-20 05:13:48,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135304320] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:13:48,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2004334065] [2021-10-20 05:13:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:48,844 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:48,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:13:48,852 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:13:48,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-20 05:13:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:50,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:13:50,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:50,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:13:50,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2004334065] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:50,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:13:50,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [5, 5] total 13 [2021-10-20 05:13:50,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785178496] [2021-10-20 05:13:50,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-20 05:13:50,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:50,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-20 05:13:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-20 05:13:50,347 INFO L87 Difference]: Start difference. First operand 2109 states and 3550 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-10-20 05:13:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:50,632 INFO L93 Difference]: Finished difference Result 2188 states and 3666 transitions. [2021-10-20 05:13:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:13:50,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 66 [2021-10-20 05:13:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:50,633 INFO L225 Difference]: With dead ends: 2188 [2021-10-20 05:13:50,634 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:13:50,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 120.5ms TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-10-20 05:13:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:13:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:13:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:13:50,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2021-10-20 05:13:50,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:50,641 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:13:50,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-10-20 05:13:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:13:50,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:13:50,644 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:50,645 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:50,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:50,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-10-20 05:13:51,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:51,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 05:13:51,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:51,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:51,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:52,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:53,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:53,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:53,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:53,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:53,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:53,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:54,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:54,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:54,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:55,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:55,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:56,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:57,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:58,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:13:59,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:00,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:14:18,606 INFO L857 garLoopResultBuilder]: For program point L828(lines 828 835) no Hoare annotation was computed. [2021-10-20 05:14:18,606 INFO L860 garLoopResultBuilder]: At program point L828-1(lines 828 835) the Hoare annotation is: true [2021-10-20 05:14:18,607 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 120) no Hoare annotation was computed. [2021-10-20 05:14:18,607 INFO L853 garLoopResultBuilder]: At program point L663(lines 658 666) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,607 INFO L853 garLoopResultBuilder]: At program point L1489(lines 1464 1491) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~0 (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,607 INFO L860 garLoopResultBuilder]: At program point L1489-1(lines 1464 1491) the Hoare annotation is: true [2021-10-20 05:14:18,607 INFO L857 garLoopResultBuilder]: For program point L135(lines 135 141) no Hoare annotation was computed. [2021-10-20 05:14:18,607 INFO L857 garLoopResultBuilder]: For program point L2084(lines 2084 2090) no Hoare annotation was computed. [2021-10-20 05:14:18,608 INFO L857 garLoopResultBuilder]: For program point L135-2(lines 135 141) no Hoare annotation was computed. [2021-10-20 05:14:18,608 INFO L857 garLoopResultBuilder]: For program point L2084-1(lines 2084 2090) no Hoare annotation was computed. [2021-10-20 05:14:18,608 INFO L857 garLoopResultBuilder]: For program point L1424(lines 1424 1428) no Hoare annotation was computed. [2021-10-20 05:14:18,608 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1395) no Hoare annotation was computed. [2021-10-20 05:14:18,608 INFO L853 garLoopResultBuilder]: At program point L1325(lines 1315 1452) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,608 INFO L853 garLoopResultBuilder]: At program point L103(lines 1 2597) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) (not (= (_ bv1 32) ~rjh~0))) [2021-10-20 05:14:18,608 INFO L857 garLoopResultBuilder]: For program point L995(lines 995 999) no Hoare annotation was computed. [2021-10-20 05:14:18,608 INFO L853 garLoopResultBuilder]: At program point L995-2(lines 988 1003) the Hoare annotation is: (and (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,609 INFO L857 garLoopResultBuilder]: For program point L995-3(lines 995 999) no Hoare annotation was computed. [2021-10-20 05:14:18,609 INFO L853 garLoopResultBuilder]: At program point L995-5(lines 988 1003) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ULTIMATE.start_incoming_~client)) (.cse1 (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|)) (.cse2 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse3 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse4 (= ULTIMATE.start_outgoing_~msg (_ bv1 32))) (.cse5 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32))) (.cse6 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse7 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse8 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse9 (= (_ bv2 32) ~rjh~0))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (= (_ bv2 32) ~__ste_email_to0~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-20 05:14:18,609 INFO L857 garLoopResultBuilder]: For program point L995-6(lines 995 999) no Hoare annotation was computed. [2021-10-20 05:14:18,609 INFO L853 garLoopResultBuilder]: At program point L995-8(lines 988 1003) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,609 INFO L857 garLoopResultBuilder]: For program point L995-9(lines 995 999) no Hoare annotation was computed. [2021-10-20 05:14:18,609 INFO L853 garLoopResultBuilder]: At program point L995-11(lines 988 1003) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) .cse0 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))) (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-10-20 05:14:18,609 INFO L857 garLoopResultBuilder]: For program point L995-12(lines 995 999) no Hoare annotation was computed. [2021-10-20 05:14:18,609 INFO L853 garLoopResultBuilder]: At program point L995-14(lines 988 1003) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,610 INFO L857 garLoopResultBuilder]: For program point L2515-1(lines 2515 2526) no Hoare annotation was computed. [2021-10-20 05:14:18,610 INFO L857 garLoopResultBuilder]: For program point L2515(lines 2515 2526) no Hoare annotation was computed. [2021-10-20 05:14:18,610 INFO L857 garLoopResultBuilder]: For program point L2582(lines 2582 2594) no Hoare annotation was computed. [2021-10-20 05:14:18,610 INFO L857 garLoopResultBuilder]: For program point L2582-2(lines 2582 2594) no Hoare annotation was computed. [2021-10-20 05:14:18,610 INFO L857 garLoopResultBuilder]: For program point L2582-4(lines 2582 2594) no Hoare annotation was computed. [2021-10-20 05:14:18,610 INFO L853 garLoopResultBuilder]: At program point L568(lines 1 2597) the Hoare annotation is: (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= ULTIMATE.start_incoming__wrappee__AutoResponder_~client (_ bv2 32)) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,611 INFO L853 garLoopResultBuilder]: At program point L568-1(lines 1 2597) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) .cse0 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 (= ULTIMATE.start_incoming__wrappee__AutoResponder_~client (_ bv2 32)) .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))))) [2021-10-20 05:14:18,611 INFO L853 garLoopResultBuilder]: At program point L1361(lines 1351 1449) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,611 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 910) no Hoare annotation was computed. [2021-10-20 05:14:18,611 INFO L857 garLoopResultBuilder]: For program point L899-1(lines 899 910) no Hoare annotation was computed. [2021-10-20 05:14:18,612 INFO L853 garLoopResultBuilder]: At program point L2089-1(lines 2072 2095) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) .cse0 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))) (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-10-20 05:14:18,612 INFO L853 garLoopResultBuilder]: At program point L2089(lines 2072 2095) the Hoare annotation is: (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,612 INFO L857 garLoopResultBuilder]: For program point L2585(lines 2585 2593) no Hoare annotation was computed. [2021-10-20 05:14:18,612 INFO L857 garLoopResultBuilder]: For program point L2519-1(lines 2519 2525) no Hoare annotation was computed. [2021-10-20 05:14:18,613 INFO L857 garLoopResultBuilder]: For program point L2585-2(lines 2585 2593) no Hoare annotation was computed. [2021-10-20 05:14:18,613 INFO L857 garLoopResultBuilder]: For program point L2519(lines 2519 2525) no Hoare annotation was computed. [2021-10-20 05:14:18,613 INFO L857 garLoopResultBuilder]: For program point L2585-4(lines 2585 2593) no Hoare annotation was computed. [2021-10-20 05:14:18,613 INFO L857 garLoopResultBuilder]: For program point L1330(lines 1330 1337) no Hoare annotation was computed. [2021-10-20 05:14:18,613 INFO L853 garLoopResultBuilder]: At program point L1430(lines 1420 1443) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,614 INFO L853 garLoopResultBuilder]: At program point L1397(lines 1387 1446) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,614 INFO L860 garLoopResultBuilder]: At program point L836(lines 818 838) the Hoare annotation is: true [2021-10-20 05:14:18,614 INFO L853 garLoopResultBuilder]: At program point L1497(lines 1492 1500) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,614 INFO L853 garLoopResultBuilder]: At program point L1497-1(lines 1492 1500) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~0 (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,615 INFO L853 garLoopResultBuilder]: At program point L1497-2(lines 1492 1500) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,615 INFO L860 garLoopResultBuilder]: At program point L1497-3(lines 1492 1500) the Hoare annotation is: true [2021-10-20 05:14:18,615 INFO L857 garLoopResultBuilder]: For program point L936(lines 936 947) no Hoare annotation was computed. [2021-10-20 05:14:18,615 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 909) no Hoare annotation was computed. [2021-10-20 05:14:18,616 INFO L857 garLoopResultBuilder]: For program point L936-1(lines 936 947) no Hoare annotation was computed. [2021-10-20 05:14:18,616 INFO L857 garLoopResultBuilder]: For program point L936-2(lines 936 947) no Hoare annotation was computed. [2021-10-20 05:14:18,616 INFO L857 garLoopResultBuilder]: For program point L903-1(lines 903 909) no Hoare annotation was computed. [2021-10-20 05:14:18,616 INFO L857 garLoopResultBuilder]: For program point L936-3(lines 936 947) no Hoare annotation was computed. [2021-10-20 05:14:18,616 INFO L853 garLoopResultBuilder]: At program point L672(lines 667 675) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,617 INFO L857 garLoopResultBuilder]: For program point L2588(lines 2588 2592) no Hoare annotation was computed. [2021-10-20 05:14:18,617 INFO L853 garLoopResultBuilder]: At program point L2588-2(lines 1 2597) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (not (= (_ bv2 32) ULTIMATE.start_setClientId_~handle)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) (not (= (_ bv1 32) ~rjh~0))) [2021-10-20 05:14:18,617 INFO L857 garLoopResultBuilder]: For program point L2588-3(lines 2588 2592) no Hoare annotation was computed. [2021-10-20 05:14:18,617 INFO L857 garLoopResultBuilder]: For program point L2588-6(lines 2588 2592) no Hoare annotation was computed. [2021-10-20 05:14:18,618 INFO L853 garLoopResultBuilder]: At program point L2588-5(lines 1 2597) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) (= (_ bv2 32) ~rjh~0) (= (_ bv2 32) ULTIMATE.start_setClientId_~handle)) [2021-10-20 05:14:18,618 INFO L857 garLoopResultBuilder]: For program point L1366(lines 1366 1370) no Hoare annotation was computed. [2021-10-20 05:14:18,618 INFO L853 garLoopResultBuilder]: At program point L2588-8(lines 1 2597) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,618 INFO L853 garLoopResultBuilder]: At program point L111(lines 106 114) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) (not (= (_ bv1 32) ~rjh~0))) [2021-10-20 05:14:18,618 INFO L857 garLoopResultBuilder]: For program point L772(lines 772 780) no Hoare annotation was computed. [2021-10-20 05:14:18,619 INFO L853 garLoopResultBuilder]: At program point L2524(lines 2507 2530) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start_outgoing_~msg (_ bv1 32))) (.cse3 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32))) (.cse4 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse5 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse6 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse7 (= (_ bv2 32) ~rjh~0))) (or (and .cse0 (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= (_ bv2 32) ~__ste_email_to0~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2021-10-20 05:14:18,619 INFO L853 garLoopResultBuilder]: At program point L2524-1(lines 2507 2530) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))) (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-10-20 05:14:18,619 INFO L857 garLoopResultBuilder]: For program point L609(lines 609 616) no Hoare annotation was computed. [2021-10-20 05:14:18,619 INFO L853 garLoopResultBuilder]: At program point L609-1(lines 1 2597) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,620 INFO L857 garLoopResultBuilder]: For program point L2558(lines 2558 2574) no Hoare annotation was computed. [2021-10-20 05:14:18,620 INFO L857 garLoopResultBuilder]: For program point L609-2(lines 609 616) no Hoare annotation was computed. [2021-10-20 05:14:18,620 INFO L857 garLoopResultBuilder]: For program point L2558-1(lines 2558 2574) no Hoare annotation was computed. [2021-10-20 05:14:18,620 INFO L857 garLoopResultBuilder]: For program point L1435(lines 1435 1439) no Hoare annotation was computed. [2021-10-20 05:14:18,620 INFO L857 garLoopResultBuilder]: For program point L1402(lines 1402 1406) no Hoare annotation was computed. [2021-10-20 05:14:18,621 INFO L853 garLoopResultBuilder]: At program point L1435-1(lines 1307 1453) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,621 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 984) no Hoare annotation was computed. [2021-10-20 05:14:18,621 INFO L857 garLoopResultBuilder]: For program point L940(lines 940 946) no Hoare annotation was computed. [2021-10-20 05:14:18,621 INFO L857 garLoopResultBuilder]: For program point L973-1(lines 973 984) no Hoare annotation was computed. [2021-10-20 05:14:18,621 INFO L857 garLoopResultBuilder]: For program point L940-1(lines 940 946) no Hoare annotation was computed. [2021-10-20 05:14:18,622 INFO L857 garLoopResultBuilder]: For program point L973-2(lines 973 984) no Hoare annotation was computed. [2021-10-20 05:14:18,622 INFO L857 garLoopResultBuilder]: For program point L940-2(lines 940 946) no Hoare annotation was computed. [2021-10-20 05:14:18,622 INFO L857 garLoopResultBuilder]: For program point L973-3(lines 973 984) no Hoare annotation was computed. [2021-10-20 05:14:18,622 INFO L857 garLoopResultBuilder]: For program point L940-3(lines 940 946) no Hoare annotation was computed. [2021-10-20 05:14:18,623 INFO L853 garLoopResultBuilder]: At program point L908(lines 895 913) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~0 (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,623 INFO L860 garLoopResultBuilder]: At program point L908-1(lines 895 913) the Hoare annotation is: true [2021-10-20 05:14:18,623 INFO L853 garLoopResultBuilder]: At program point L1372(lines 1362 1448) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,623 INFO L853 garLoopResultBuilder]: At program point L1339(lines 1326 1451) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,624 INFO L857 garLoopResultBuilder]: For program point L2562(lines 2562 2573) no Hoare annotation was computed. [2021-10-20 05:14:18,624 INFO L857 garLoopResultBuilder]: For program point L2562-1(lines 2562 2573) no Hoare annotation was computed. [2021-10-20 05:14:18,624 INFO L857 garLoopResultBuilder]: For program point L2100(lines 2100 2112) no Hoare annotation was computed. [2021-10-20 05:14:18,624 INFO L857 garLoopResultBuilder]: For program point L977(lines 977 983) no Hoare annotation was computed. [2021-10-20 05:14:18,624 INFO L857 garLoopResultBuilder]: For program point L977-1(lines 977 983) no Hoare annotation was computed. [2021-10-20 05:14:18,625 INFO L857 garLoopResultBuilder]: For program point L977-2(lines 977 983) no Hoare annotation was computed. [2021-10-20 05:14:18,625 INFO L857 garLoopResultBuilder]: For program point L977-3(lines 977 983) no Hoare annotation was computed. [2021-10-20 05:14:18,625 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 05:14:18,625 INFO L857 garLoopResultBuilder]: For program point L1308(lines 1307 1453) no Hoare annotation was computed. [2021-10-20 05:14:18,625 INFO L853 garLoopResultBuilder]: At program point L945(lines 932 950) the Hoare annotation is: (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,626 INFO L853 garLoopResultBuilder]: At program point L945-1(lines 932 950) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~0 (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,626 INFO L853 garLoopResultBuilder]: At program point L945-2(lines 932 950) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) .cse0 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))) (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-10-20 05:14:18,626 INFO L860 garLoopResultBuilder]: At program point L945-3(lines 932 950) the Hoare annotation is: true [2021-10-20 05:14:18,626 INFO L853 garLoopResultBuilder]: At program point L681(lines 676 684) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,627 INFO L853 garLoopResultBuilder]: At program point L1408(lines 1398 1445) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,627 INFO L857 garLoopResultBuilder]: For program point L1309(lines 1309 1313) no Hoare annotation was computed. [2021-10-20 05:14:18,627 INFO L857 garLoopResultBuilder]: For program point L120(line 120) no Hoare annotation was computed. [2021-10-20 05:14:18,627 INFO L857 garLoopResultBuilder]: For program point L120-1(line 120) no Hoare annotation was computed. [2021-10-20 05:14:18,628 INFO L853 garLoopResultBuilder]: At program point L121(lines 127 144) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~0 (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,628 INFO L860 garLoopResultBuilder]: At program point L121-1(lines 127 144) the Hoare annotation is: true [2021-10-20 05:14:18,628 INFO L857 garLoopResultBuilder]: For program point L2103(lines 2103 2111) no Hoare annotation was computed. [2021-10-20 05:14:18,628 INFO L853 garLoopResultBuilder]: At program point L815(lines 795 817) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,628 INFO L857 garLoopResultBuilder]: For program point L2566(lines 2566 2572) no Hoare annotation was computed. [2021-10-20 05:14:18,629 INFO L857 garLoopResultBuilder]: For program point L2566-1(lines 2566 2572) no Hoare annotation was computed. [2021-10-20 05:14:18,629 INFO L857 garLoopResultBuilder]: For program point L1377(lines 1377 1384) no Hoare annotation was computed. [2021-10-20 05:14:18,629 INFO L857 garLoopResultBuilder]: For program point L1344(lines 1344 1348) no Hoare annotation was computed. [2021-10-20 05:14:18,629 INFO L853 garLoopResultBuilder]: At program point L982(lines 969 987) the Hoare annotation is: (and (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,629 INFO L853 garLoopResultBuilder]: At program point L982-1(lines 969 987) the Hoare annotation is: (and (= |ULTIMATE.start_isReadable_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~0 (_ bv1 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,629 INFO L853 garLoopResultBuilder]: At program point L982-2(lines 969 987) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= ULTIMATE.start_incoming_~fwreceiver~0 (_ bv0 32)) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) .cse0 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))) (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-10-20 05:14:18,629 INFO L860 garLoopResultBuilder]: At program point L982-3(lines 969 987) the Hoare annotation is: true [2021-10-20 05:14:18,629 INFO L857 garLoopResultBuilder]: For program point L2535(lines 2535 2547) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point L2106(lines 2106 2110) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L853 garLoopResultBuilder]: At program point L2106-2(lines 1 2597) the Hoare annotation is: (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1417) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1452) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 595) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L853 garLoopResultBuilder]: At program point L589-1(lines 581 598) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) ULTIMATE.start_incoming_~client)) (.cse1 (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|)) (.cse2 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse3 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse4 (= ULTIMATE.start_outgoing_~msg (_ bv1 32))) (.cse5 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32))) (.cse6 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse7 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse8 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse9 (= (_ bv2 32) ~rjh~0))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (= (_ bv2 32) ~__ste_email_to0~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point L2538(lines 2538 2546) no Hoare annotation was computed. [2021-10-20 05:14:18,630 INFO L853 garLoopResultBuilder]: At program point L2571-1(lines 2554 2577) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,630 INFO L857 garLoopResultBuilder]: For program point L589-2(lines 589 595) no Hoare annotation was computed. [2021-10-20 05:14:18,631 INFO L853 garLoopResultBuilder]: At program point L2571(lines 2554 2577) the Hoare annotation is: (and (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,631 INFO L853 garLoopResultBuilder]: At program point L589-3(lines 581 598) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32))) (.cse1 (= (_ bv2 32) ULTIMATE.start_createEmail_~to)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|)) (.cse3 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse4 (= (_ bv2 32) ~rjh~0))) (or (and (= (_ bv2 32) ULTIMATE.start_incoming_~client) (= (_ bv2 32) |ULTIMATE.start_getEmailTo_#res|) (= (_ bv0 32) ~__ste_client_forwardReceiver1~0) .cse0 (= ULTIMATE.start_getEmailTo_~handle (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_getClientForwardReceiver_#res| (_ bv0 32))) (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-10-20 05:14:18,631 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-20 05:14:18,631 INFO L857 garLoopResultBuilder]: For program point L2076(lines 2076 2092) no Hoare annotation was computed. [2021-10-20 05:14:18,631 INFO L857 garLoopResultBuilder]: For program point L2076-1(lines 2076 2092) no Hoare annotation was computed. [2021-10-20 05:14:18,631 INFO L853 garLoopResultBuilder]: At program point L1350(lines 1340 1450) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,631 INFO L857 garLoopResultBuilder]: For program point L955(lines 955 963) no Hoare annotation was computed. [2021-10-20 05:14:18,631 INFO L857 garLoopResultBuilder]: For program point L955-2(lines 955 963) no Hoare annotation was computed. [2021-10-20 05:14:18,632 INFO L857 garLoopResultBuilder]: For program point L955-4(lines 955 963) no Hoare annotation was computed. [2021-10-20 05:14:18,632 INFO L857 garLoopResultBuilder]: For program point L2541(lines 2541 2545) no Hoare annotation was computed. [2021-10-20 05:14:18,632 INFO L853 garLoopResultBuilder]: At program point L2541-2(lines 1 2597) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,632 INFO L857 garLoopResultBuilder]: For program point L1319(lines 1319 1323) no Hoare annotation was computed. [2021-10-20 05:14:18,632 INFO L853 garLoopResultBuilder]: At program point L1419(lines 1409 1444) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,632 INFO L853 garLoopResultBuilder]: At program point L1386(lines 1373 1447) the Hoare annotation is: (let ((.cse0 (not (= ~__ste_email_to0~0 (_ bv1 32)))) (.cse1 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse2 (= (_ bv3 32) ULTIMATE.start_setClientId_~handle)) (.cse3 (= (_ bv2 32) ~rjh~0))) (or (and (= ULTIMATE.start_test_~op2~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_setClientAutoResponse_~handle) .cse2 .cse3))) [2021-10-20 05:14:18,632 INFO L857 garLoopResultBuilder]: For program point L2080(lines 2080 2091) no Hoare annotation was computed. [2021-10-20 05:14:18,632 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-20 05:14:18,632 INFO L857 garLoopResultBuilder]: For program point L2080-1(lines 2080 2091) no Hoare annotation was computed. [2021-10-20 05:14:18,633 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 120) no Hoare annotation was computed. [2021-10-20 05:14:18,633 INFO L857 garLoopResultBuilder]: For program point L958(lines 958 962) no Hoare annotation was computed. [2021-10-20 05:14:18,633 INFO L853 garLoopResultBuilder]: At program point L958-2(lines 951 966) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,633 INFO L857 garLoopResultBuilder]: For program point L958-3(lines 958 962) no Hoare annotation was computed. [2021-10-20 05:14:18,633 INFO L853 garLoopResultBuilder]: At program point L958-5(lines 951 966) the Hoare annotation is: (and (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= ULTIMATE.start_outgoing_~msg (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,633 INFO L857 garLoopResultBuilder]: For program point L958-6(lines 958 962) no Hoare annotation was computed. [2021-10-20 05:14:18,633 INFO L853 garLoopResultBuilder]: At program point L958-8(lines 951 966) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,633 INFO L857 garLoopResultBuilder]: For program point L2511-1(lines 2511 2527) no Hoare annotation was computed. [2021-10-20 05:14:18,633 INFO L853 garLoopResultBuilder]: At program point L1454(lines 1306 1455) the Hoare annotation is: (and (not (= ~__ste_email_to0~0 (_ bv1 32))) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L2511(lines 2511 2527) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L1355(lines 1355 1359) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L992(lines 992 1000) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L992-2(lines 992 1000) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L992-4(lines 992 1000) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L992-6(lines 992 1000) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L857 garLoopResultBuilder]: For program point L992-8(lines 992 1000) no Hoare annotation was computed. [2021-10-20 05:14:18,634 INFO L853 garLoopResultBuilder]: At program point L1521(lines 1510 1524) the Hoare annotation is: (and (= (_ bv2 32) ~__ste_email_to0~0) (= (_ bv2 32) ULTIMATE.start_setEmailTo_~value) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start_setEmailTo_~handle (_ bv1 32)) (= ULTIMATE.start_createEmail_~msg~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start_createEmail_~to) (= (_ bv1 32) |ULTIMATE.start_createEmail_#res|) (= (_ bv3 32) ULTIMATE.start_setClientId_~handle) (= (_ bv2 32) ~rjh~0)) [2021-10-20 05:14:18,639 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:14:18,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:14:18 BoogieIcfgContainer [2021-10-20 05:14:18,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:14:18,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:14:18,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:14:18,699 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:14:18,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:00" (3/4) ... [2021-10-20 05:14:18,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:14:18,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2021-10-20 05:14:18,741 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2021-10-20 05:14:18,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-20 05:14:18,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-20 05:14:18,748 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:14:18,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:14:18,784 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && !(1bv32 == rjh) [2021-10-20 05:14:18,785 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(__ste_email_to0 == 1bv32) && !(2bv32 == handle)) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && !(1bv32 == rjh) [2021-10-20 05:14:18,786 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && 2bv32 == rjh) && 2bv32 == handle [2021-10-20 05:14:18,786 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,786 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,787 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,787 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,791 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,791 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,791 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,792 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && msg == 1bv32) && 2bv32 == to) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,792 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && 2bv32 == to) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,793 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,793 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,793 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,794 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((2bv32 == __ste_email_to0 && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,795 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && client == 2bv32) && 2bv32 == rjh [2021-10-20 05:14:18,795 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,795 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((2bv32 == client && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,796 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || ((((((((2bv32 == __ste_email_to0 && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,797 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((2bv32 == client && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,798 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1bv32 && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,800 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,802 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,802 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((2bv32 == __ste_email_to0 && 2bv32 == \result) && fwreceiver == 0bv32) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,803 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,803 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || (((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && client == 2bv32) && 2bv32 == rjh) && \result == 0bv32) [2021-10-20 05:14:18,803 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,804 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,804 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((2bv32 == client && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,804 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,805 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((msg == 1bv32 && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,805 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,806 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,806 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((2bv32 == client && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) [2021-10-20 05:14:18,807 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1bv32 && \result == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh [2021-10-20 05:14:18,905 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:14:18,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:14:18,907 INFO L168 Benchmark]: Toolchain (without parser) took 84315.14 ms. Allocated memory was 81.8 MB in the beginning and 413.1 MB in the end (delta: 331.4 MB). Free memory was 44.1 MB in the beginning and 127.1 MB in the end (delta: -83.0 MB). Peak memory consumption was 250.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,908 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 81.8 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:14:18,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1260.07 ms. Allocated memory is still 81.8 MB. Free memory was 43.9 MB in the beginning and 52.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.57 ms. Allocated memory is still 81.8 MB. Free memory was 52.1 MB in the beginning and 46.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,909 INFO L168 Benchmark]: Boogie Preprocessor took 109.35 ms. Allocated memory is still 81.8 MB. Free memory was 46.5 MB in the beginning and 43.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,910 INFO L168 Benchmark]: RCFGBuilder took 3885.70 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 42.7 MB in the beginning and 70.0 MB in the end (delta: -27.3 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,911 INFO L168 Benchmark]: TraceAbstraction took 78688.95 ms. Allocated memory was 109.1 MB in the beginning and 413.1 MB in the end (delta: 304.1 MB). Free memory was 69.1 MB in the beginning and 144.9 MB in the end (delta: -75.8 MB). Peak memory consumption was 256.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,911 INFO L168 Benchmark]: Witness Printer took 207.21 ms. Allocated memory is still 413.1 MB. Free memory was 144.9 MB in the beginning and 127.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:14:18,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 81.8 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1260.07 ms. Allocated memory is still 81.8 MB. Free memory was 43.9 MB in the beginning and 52.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.57 ms. Allocated memory is still 81.8 MB. Free memory was 52.1 MB in the beginning and 46.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.35 ms. Allocated memory is still 81.8 MB. Free memory was 46.5 MB in the beginning and 43.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3885.70 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 42.7 MB in the beginning and 70.0 MB in the end (delta: -27.3 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 78688.95 ms. Allocated memory was 109.1 MB in the beginning and 413.1 MB in the end (delta: 304.1 MB). Free memory was 69.1 MB in the beginning and 144.9 MB in the end (delta: -75.8 MB). Peak memory consumption was 256.1 MB. Max. memory is 16.1 GB. * Witness Printer took 207.21 ms. Allocated memory is still 413.1 MB. Free memory was 144.9 MB in the beginning and 127.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 120]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 120]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 162 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 78542.7ms, OverallIterations: 17, TraceHistogramMax: 3, EmptinessCheckTime: 70.4ms, AutomataDifference: 20299.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 27555.1ms, InitialAbstractionConstructionTime: 20.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4956 SDtfs, 13021 SDslu, 12722 SDs, 0 SdLazy, 1286 SolverSat, 200 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 11115.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2642 GetRequests, 2386 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5352 ImplicationChecksByTransitivity, 6624.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2109occurred in iteration=16, InterpolantAutomatonStates: 217, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1396.2ms AutomataMinimizationTime, 17 MinimizatonAttempts, 5121 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 63 LocationsWithAnnotation, 63 PreInvPairs, 1041 NumberOfFragments, 1806 HoareAnnotationTreeSize, 63 FomulaSimplifications, 1455778818 FormulaSimplificationTreeSizeReduction, 9618.0ms HoareSimplificationTime, 63 FomulaSimplificationsInter, 11670975 FormulaSimplificationTreeSizeReductionInter, 17900.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1351.7ms SsaConstructionTime, 3496.5ms SatisfiabilityAnalysisTime, 9482.0ms InterpolantComputationTime, 1263 NumberOfCodeBlocks, 1263 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2480 ConstructedInterpolants, 0 QuantifiedInterpolants, 4002 SizeOfPredicates, 76 NumberOfNonLiveVariables, 9617 ConjunctsInSsa, 126 ConjunctsInUnsatCore, 46 InterpolantComputations, 34 PerfectInterpolantSequences, 194/290 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 895]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 969]: Loop Invariant Derived loop invariant: ((((((((((2bv32 == __ste_email_to0 && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 2507]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || ((((((((2bv32 == __ste_email_to0 && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 2072]: Loop Invariant Derived loop invariant: ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 795]: Loop Invariant Derived loop invariant: (((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1306]: Loop Invariant Derived loop invariant: ((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1398]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 2554]: Loop Invariant Derived loop invariant: ((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 969]: Loop Invariant Derived loop invariant: (((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2507]: Loop Invariant Derived loop invariant: (((((msg == 1bv32 && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 658]: Loop Invariant Derived loop invariant: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || (((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && client == 2bv32) && 2bv32 == rjh) && \result == 0bv32) - InvariantResult [Line: 1362]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1420]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && !(1bv32 == rjh) - InvariantResult [Line: 1326]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 951]: Loop Invariant Derived loop invariant: ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && msg == 1bv32) && 2bv32 == to) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 2072]: Loop Invariant Derived loop invariant: (((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 988]: Loop Invariant Derived loop invariant: ((((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1492]: Loop Invariant Derived loop invariant: (((((((\result == 1bv32 && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 932]: Loop Invariant Derived loop invariant: (((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: (((((((((2bv32 == client && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1307]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 932]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: ((((((((((2bv32 == client && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 895]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 828]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2554]: Loop Invariant Derived loop invariant: ((((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1373]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1492]: Loop Invariant Derived loop invariant: (((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1340]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 988]: Loop Invariant Derived loop invariant: ((((((((((2bv32 == client && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) || ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 667]: Loop Invariant Derived loop invariant: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1464]: Loop Invariant Derived loop invariant: (((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((!(__ste_email_to0 == 1bv32) && !(2bv32 == handle)) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && !(1bv32 == rjh) - InvariantResult [Line: 1409]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 988]: Loop Invariant Derived loop invariant: ((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && 2bv32 == rjh) && 2bv32 == handle - InvariantResult [Line: 951]: Loop Invariant Derived loop invariant: ((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1492]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 988]: Loop Invariant Derived loop invariant: (((((((((2bv32 == client && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 951]: Loop Invariant Derived loop invariant: ((((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 969]: Loop Invariant Derived loop invariant: ((((((((((2bv32 == __ste_email_to0 && 2bv32 == \result) && fwreceiver == 0bv32) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 988]: Loop Invariant Derived loop invariant: ((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && 2bv32 == to) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1510]: Loop Invariant Derived loop invariant: (((((((2bv32 == __ste_email_to0 && 2bv32 == value) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (!(__ste_email_to0 == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && !(1bv32 == rjh) - InvariantResult [Line: 932]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && tmp == 1bv32) && \result == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1492]: Loop Invariant Derived loop invariant: (((((\result == 1bv32 && \result == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 969]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 932]: Loop Invariant Derived loop invariant: ((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == \result) && 0bv32 == __ste_client_forwardReceiver1) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) && \result == 0bv32) || (((((\result == 1bv32 && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 0bv32 == __ste_client_forwardReceiver1) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: (((((\result == 1bv32 && msg == 1bv32) && msg == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && 2bv32 == rjh - InvariantResult [Line: 1464]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1387]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1315]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1351]: Loop Invariant Derived loop invariant: ((((op2 == 0bv32 && !(__ste_email_to0 == 1bv32)) && \result == 1bv32) && 3bv32 == handle) && 2bv32 == rjh) || ((((!(__ste_email_to0 == 1bv32) && \result == 1bv32) && 2bv32 == handle) && 3bv32 == handle) && 2bv32 == rjh) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((((((2bv32 == client && 2bv32 == __ste_email_to0) && 2bv32 == value) && 2bv32 == \result) && \result == 1bv32) && handle == 1bv32) && msg == 1bv32) && msg == 1bv32) && handle == 1bv32) && 2bv32 == to) && 1bv32 == \result) && 3bv32 == handle) && client == 2bv32) && 2bv32 == rjh RESULT: Ultimate proved your program to be correct! [2021-10-20 05:14:19,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fa8d55-a4c9-42a8-9d83-bc2343fe2992/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...