./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:56:26,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:56:26,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:56:26,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:56:26,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:56:26,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:56:26,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:56:26,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:56:26,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:56:26,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:56:26,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:56:26,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:56:26,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:56:26,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:56:26,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:56:26,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:56:26,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:56:26,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:56:26,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:56:26,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:56:26,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:56:26,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:56:26,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:56:26,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:56:26,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:56:26,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:56:26,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:56:26,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:56:26,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:56:26,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:56:26,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:56:26,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:56:26,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:56:26,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:56:26,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:56:26,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:56:26,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:56:26,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:56:26,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:56:26,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:56:26,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:56:26,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-12 22:56:26,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:56:26,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:56:26,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:56:26,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:56:26,597 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:56:26,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:56:26,598 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:56:26,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:56:26,598 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:56:26,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:56:26,606 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:56:26,606 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:56:26,606 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:56:26,606 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:56:26,607 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:56:26,607 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:56:26,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:56:26,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:56:26,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:56:26,609 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:56:26,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:56:26,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:56:26,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:56:26,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:56:26,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:56:26,610 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:56:26,611 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:56:26,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:56:26,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:56:26,611 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:56:26,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:56:26,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:56:26,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:56:26,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:26,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:56:26,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:56:26,613 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:56:26,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:56:26,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:56:26,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:56:26,614 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 [2021-11-12 22:56:26,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:56:26,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:56:26,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:56:26,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:56:26,941 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:56:26,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2021-11-12 22:56:27,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/d24bd1fa1/b090d69c80fc4b86b0d00b4271907325/FLAG045e9adad [2021-11-12 22:56:27,653 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:56:27,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2021-11-12 22:56:27,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/d24bd1fa1/b090d69c80fc4b86b0d00b4271907325/FLAG045e9adad [2021-11-12 22:56:27,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/d24bd1fa1/b090d69c80fc4b86b0d00b4271907325 [2021-11-12 22:56:27,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:56:27,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:56:27,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:27,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:56:27,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:56:27,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:27" (1/1) ... [2021-11-12 22:56:27,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c70954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:27, skipping insertion in model container [2021-11-12 22:56:27,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:27" (1/1) ... [2021-11-12 22:56:27,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:56:27,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:28,460 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2021-11-12 22:56:28,602 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2021-11-12 22:56:28,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:28,664 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) [2021-11-12 22:56:28,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f72dc8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:28, skipping insertion in model container [2021-11-12 22:56:28,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:28,667 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:56:28,670 INFO L158 Benchmark]: Toolchain (without parser) took 790.02ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 48.3MB in the beginning and 71.2MB in the end (delta: -23.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:56:28,672 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:56:28,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.30ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 48.0MB in the beginning and 71.2MB in the end (delta: -23.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:56:28,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.30ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 48.0MB in the beginning and 71.2MB in the end (delta: -23.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:56:31,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:56:31,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:56:31,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:56:31,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:56:31,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:56:31,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:56:31,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:56:31,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:56:31,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:56:31,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:56:31,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:56:31,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:56:31,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:56:31,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:56:31,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:56:31,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:56:31,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:56:31,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:56:31,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:56:31,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:56:31,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:56:31,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:56:31,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:56:31,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:56:31,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:56:31,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:56:31,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:56:31,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:56:31,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:56:31,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:56:31,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:56:31,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:56:31,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:56:31,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:56:31,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:56:31,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:56:31,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:56:31,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:56:31,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:56:31,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:56:31,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-12 22:56:31,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:56:31,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:56:31,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:56:31,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:56:31,224 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:56:31,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:56:31,224 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:56:31,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:56:31,225 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:56:31,226 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:56:31,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:56:31,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:56:31,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:56:31,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:56:31,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:56:31,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:56:31,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:56:31,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:56:31,230 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:56:31,230 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:56:31,230 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:56:31,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:56:31,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:56:31,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:56:31,231 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:56:31,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:56:31,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:56:31,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:56:31,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:56:31,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:56:31,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:31,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:56:31,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:56:31,234 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:56:31,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:56:31,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:56:31,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:56:31,235 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 [2021-11-12 22:56:31,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:56:31,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:56:31,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:56:31,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:56:31,636 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:56:31,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2021-11-12 22:56:31,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/88bb88cb7/8eda1d7f1d15405d94b86bef5bf93d68/FLAG69e314c2e [2021-11-12 22:56:32,393 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:56:32,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2021-11-12 22:56:32,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/88bb88cb7/8eda1d7f1d15405d94b86bef5bf93d68/FLAG69e314c2e [2021-11-12 22:56:32,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/data/88bb88cb7/8eda1d7f1d15405d94b86bef5bf93d68 [2021-11-12 22:56:32,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:56:32,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:56:32,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:32,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:56:32,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:56:32,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:32" (1/1) ... [2021-11-12 22:56:32,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731bf79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:32, skipping insertion in model container [2021-11-12 22:56:32,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:56:32" (1/1) ... [2021-11-12 22:56:32,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:56:32,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:33,268 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2021-11-12 22:56:33,430 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2021-11-12 22:56:33,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:33,465 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:56:33,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:56:33,530 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2021-11-12 22:56:33,627 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2021-11-12 22:56:33,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:33,645 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:56:33,683 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2021-11-12 22:56:33,780 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_c925c21e-a9d7-4d35-b8e6-5171657dc75d/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2021-11-12 22:56:33,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:56:33,858 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:56:33,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33 WrapperNode [2021-11-12 22:56:33,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:56:33,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:56:33,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:56:33,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:56:33,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:33,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:33,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:56:33,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:56:33,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:56:33,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:56:33,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:33,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:56:34,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:56:34,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:56:34,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:56:34,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (1/1) ... [2021-11-12 22:56:34,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:56:34,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:56:34,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:56:34,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:56:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:56:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:56:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 22:56:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:56:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:56:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:56:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:56:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:56:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:56:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:56:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:56:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:56:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:56:34,521 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 22:56:39,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:56:39,483 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-12 22:56:39,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:39 BoogieIcfgContainer [2021-11-12 22:56:39,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:56:39,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:56:39,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:56:39,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:56:39,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:56:32" (1/3) ... [2021-11-12 22:56:39,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d08729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:39, skipping insertion in model container [2021-11-12 22:56:39,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:56:33" (2/3) ... [2021-11-12 22:56:39,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d08729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:56:39, skipping insertion in model container [2021-11-12 22:56:39,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:56:39" (3/3) ... [2021-11-12 22:56:39,497 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-2.i [2021-11-12 22:56:39,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:56:39,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations. [2021-11-12 22:56:39,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:56:39,556 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:56:39,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2021-11-12 22:56:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 1081 states, 537 states have (on average 2.2364990689013036) internal successors, (1201), 1075 states have internal predecessors, (1201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 22:56:39,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 22:56:39,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:39,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 22:56:39,601 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:39,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2021-11-12 22:56:39,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:39,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569985137] [2021-11-12 22:56:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:39,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:39,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:39,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:39,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:56:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:39,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:39,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:39,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:56:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:39,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:39,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:39,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569985137] [2021-11-12 22:56:39,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569985137] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:39,975 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:39,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:56:39,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893306226] [2021-11-12 22:56:39,978 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:39,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:56:39,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:40,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:56:40,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:40,026 INFO L87 Difference]: Start difference. First operand has 1081 states, 537 states have (on average 2.2364990689013036) internal successors, (1201), 1075 states have internal predecessors, (1201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-12 22:56:42,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:42,533 INFO L93 Difference]: Finished difference Result 1245 states and 1321 transitions. [2021-11-12 22:56:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:56:42,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-11-12 22:56:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:42,573 INFO L225 Difference]: With dead ends: 1245 [2021-11-12 22:56:42,573 INFO L226 Difference]: Without dead ends: 1243 [2021-11-12 22:56:42,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:42,582 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 995 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1986.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.17ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2387.86ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:42,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 805 Invalid, 656 Unknown, 0 Unchecked, 21.17ms Time], IncrementalHoareTripleChecker [16 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 2387.86ms Time] [2021-11-12 22:56:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-12 22:56:42,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1065. [2021-11-12 22:56:42,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 537 states have (on average 2.080074487895717) internal successors, (1117), 1059 states have internal predecessors, (1117), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 22:56:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1133 transitions. [2021-11-12 22:56:42,692 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1133 transitions. Word has length 3 [2021-11-12 22:56:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:42,693 INFO L470 AbstractCegarLoop]: Abstraction has 1065 states and 1133 transitions. [2021-11-12 22:56:42,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-12 22:56:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1133 transitions. [2021-11-12 22:56:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 22:56:42,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:42,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 22:56:42,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:56:42,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:42,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:42,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:42,906 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2021-11-12 22:56:42,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:42,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258142170] [2021-11-12 22:56:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:42,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:42,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:42,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:42,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:56:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:43,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:43,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:43,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:56:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:43,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:43,155 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:43,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258142170] [2021-11-12 22:56:43,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258142170] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:43,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:43,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 22:56:43,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44051933] [2021-11-12 22:56:43,158 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:43,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:43,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:43,161 INFO L87 Difference]: Start difference. First operand 1065 states and 1133 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:48,008 INFO L93 Difference]: Finished difference Result 1558 states and 1671 transitions. [2021-11-12 22:56:48,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:48,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-12 22:56:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:48,018 INFO L225 Difference]: With dead ends: 1558 [2021-11-12 22:56:48,019 INFO L226 Difference]: Without dead ends: 1558 [2021-11-12 22:56:48,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:48,021 INFO L933 BasicCegarLoop]: 801 mSDtfsCounter, 1187 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4093.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.86ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4760.18ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:48,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 1610 Invalid, 1104 Unknown, 0 Unchecked, 18.86ms Time], IncrementalHoareTripleChecker [18 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 4760.18ms Time] [2021-11-12 22:56:48,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-11-12 22:56:48,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1100. [2021-11-12 22:56:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 581 states have (on average 2.0585197934595527) internal successors, (1196), 1094 states have internal predecessors, (1196), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 22:56:48,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1212 transitions. [2021-11-12 22:56:48,073 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1212 transitions. Word has length 3 [2021-11-12 22:56:48,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:48,074 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1212 transitions. [2021-11-12 22:56:48,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1212 transitions. [2021-11-12 22:56:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:56:48,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:48,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:48,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 22:56:48,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:48,285 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:48,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:48,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2021-11-12 22:56:48,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:48,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297197734] [2021-11-12 22:56:48,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:48,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:48,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:48,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:48,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:56:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:48,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:48,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:48,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:56:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:48,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:48,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:48,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297197734] [2021-11-12 22:56:48,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297197734] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:48,465 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:48,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:56:48,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346637646] [2021-11-12 22:56:48,466 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:48,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:56:48,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:56:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:48,467 INFO L87 Difference]: Start difference. First operand 1100 states and 1212 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-12 22:56:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:50,344 INFO L93 Difference]: Finished difference Result 1277 states and 1416 transitions. [2021-11-12 22:56:50,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:56:50,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-12 22:56:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:50,353 INFO L225 Difference]: With dead ends: 1277 [2021-11-12 22:56:50,353 INFO L226 Difference]: Without dead ends: 1277 [2021-11-12 22:56:50,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:50,355 INFO L933 BasicCegarLoop]: 908 mSDtfsCounter, 816 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1512.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.85ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1829.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:50,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 1186 Invalid, 685 Unknown, 0 Unchecked, 8.85ms Time], IncrementalHoareTripleChecker [51 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 1829.47ms Time] [2021-11-12 22:56:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2021-11-12 22:56:50,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1053. [2021-11-12 22:56:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 581 states have (on average 1.972461273666093) internal successors, (1146), 1047 states have internal predecessors, (1146), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 22:56:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1162 transitions. [2021-11-12 22:56:50,387 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1162 transitions. Word has length 8 [2021-11-12 22:56:50,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:50,388 INFO L470 AbstractCegarLoop]: Abstraction has 1053 states and 1162 transitions. [2021-11-12 22:56:50,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-12 22:56:50,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1162 transitions. [2021-11-12 22:56:50,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 22:56:50,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:50,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:50,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:56:50,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:50,599 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:50,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:50,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2021-11-12 22:56:50,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:50,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481600262] [2021-11-12 22:56:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:50,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:50,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:50,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:56:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:50,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:50,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:50,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:56:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:50,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:50,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:50,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481600262] [2021-11-12 22:56:50,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481600262] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:50,866 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:50,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 22:56:50,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837359858] [2021-11-12 22:56:50,866 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:50,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:50,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:50,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:50,867 INFO L87 Difference]: Start difference. First operand 1053 states and 1162 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:54,826 INFO L93 Difference]: Finished difference Result 1307 states and 1410 transitions. [2021-11-12 22:56:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 22:56:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:54,835 INFO L225 Difference]: With dead ends: 1307 [2021-11-12 22:56:54,835 INFO L226 Difference]: Without dead ends: 1307 [2021-11-12 22:56:54,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:54,836 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 1042 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3404.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.64ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3903.25ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:54,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 1510 Invalid, 710 Unknown, 0 Unchecked, 15.64ms Time], IncrementalHoareTripleChecker [19 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 3903.25ms Time] [2021-11-12 22:56:54,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-11-12 22:56:54,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1043. [2021-11-12 22:56:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 581 states have (on average 1.9500860585197934) internal successors, (1133), 1037 states have internal predecessors, (1133), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 22:56:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1149 transitions. [2021-11-12 22:56:54,874 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1149 transitions. Word has length 8 [2021-11-12 22:56:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:54,875 INFO L470 AbstractCegarLoop]: Abstraction has 1043 states and 1149 transitions. [2021-11-12 22:56:54,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:54,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1149 transitions. [2021-11-12 22:56:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:56:54,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:54,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:54,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 22:56:55,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:55,095 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr429REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:55,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:55,096 INFO L85 PathProgramCache]: Analyzing trace with hash 871160987, now seen corresponding path program 1 times [2021-11-12 22:56:55,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:55,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244129342] [2021-11-12 22:56:55,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:55,096 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:55,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:55,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:55,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:56:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:55,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:55,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:55,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:55,405 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:55,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244129342] [2021-11-12 22:56:55,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244129342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:55,405 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:55,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:56:55,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976061712] [2021-11-12 22:56:55,406 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:55,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:56:55,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:55,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:56:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:55,407 INFO L87 Difference]: Start difference. First operand 1043 states and 1149 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-11-12 22:56:55,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:55,764 INFO L93 Difference]: Finished difference Result 1516 states and 1666 transitions. [2021-11-12 22:56:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:56:55,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-11-12 22:56:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:55,774 INFO L225 Difference]: With dead ends: 1516 [2021-11-12 22:56:55,775 INFO L226 Difference]: Without dead ends: 1516 [2021-11-12 22:56:55,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:56:55,776 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 570 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 284.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.41ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331.43ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:55,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2042 Invalid, 119 Unknown, 0 Unchecked, 6.41ms Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 331.43ms Time] [2021-11-12 22:56:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2021-11-12 22:56:55,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1223. [2021-11-12 22:56:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 756 states have (on average 1.8981481481481481) internal successors, (1435), 1217 states have internal predecessors, (1435), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:56:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1461 transitions. [2021-11-12 22:56:55,814 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1461 transitions. Word has length 11 [2021-11-12 22:56:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:55,814 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1461 transitions. [2021-11-12 22:56:55,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-11-12 22:56:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1461 transitions. [2021-11-12 22:56:55,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:56:55,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:55,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:55,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:56,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:56,032 INFO L85 PathProgramCache]: Analyzing trace with hash -702153283, now seen corresponding path program 1 times [2021-11-12 22:56:56,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:56,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512603293] [2021-11-12 22:56:56,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:56,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:56,034 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:56,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:56:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:56,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:56,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:56,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:56,223 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:56,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512603293] [2021-11-12 22:56:56,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512603293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:56,224 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:56,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:56:56,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978385508] [2021-11-12 22:56:56,224 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:56,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:56,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:56,226 INFO L87 Difference]: Start difference. First operand 1223 states and 1461 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:56,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:56,278 INFO L93 Difference]: Finished difference Result 1377 states and 1601 transitions. [2021-11-12 22:56:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:56:56,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-12 22:56:56,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:56,287 INFO L225 Difference]: With dead ends: 1377 [2021-11-12 22:56:56,288 INFO L226 Difference]: Without dead ends: 1377 [2021-11-12 22:56:56,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:56,289 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 808 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.29ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.68ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:56,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 2048 Invalid, 18 Unknown, 0 Unchecked, 5.29ms Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 30.68ms Time] [2021-11-12 22:56:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2021-11-12 22:56:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1163. [2021-11-12 22:56:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 720 states have (on average 1.8736111111111111) internal successors, (1349), 1157 states have internal predecessors, (1349), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:56:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1375 transitions. [2021-11-12 22:56:56,340 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1375 transitions. Word has length 13 [2021-11-12 22:56:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:56,340 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1375 transitions. [2021-11-12 22:56:56,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1375 transitions. [2021-11-12 22:56:56,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 22:56:56,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:56,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:56,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:56,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,554 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr534ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:56,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:56,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1723272146, now seen corresponding path program 1 times [2021-11-12 22:56:56,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:56,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633692639] [2021-11-12 22:56:56,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:56,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:56,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:56,560 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:56,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:56:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:56,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:56:56,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:56,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:56:56,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:56:56,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:56:56,820 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-12 22:56:56,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-12 22:56:56,885 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-12 22:56:56,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-12 22:56:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:56,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:56,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:56,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633692639] [2021-11-12 22:56:56,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633692639] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:56,988 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:56,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:56:56,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116086403] [2021-11-12 22:56:56,989 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:56,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:56:56,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:56,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:56:56,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:56:56,990 INFO L87 Difference]: Start difference. First operand 1163 states and 1375 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:59,158 INFO L93 Difference]: Finished difference Result 1500 states and 1763 transitions. [2021-11-12 22:56:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:56:59,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 22:56:59,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:59,166 INFO L225 Difference]: With dead ends: 1500 [2021-11-12 22:56:59,166 INFO L226 Difference]: Without dead ends: 1500 [2021-11-12 22:56:59,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:56:59,168 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 342 mSDsluCounter, 3706 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1856.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.13ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2102.38ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:59,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 4692 Invalid, 411 Unknown, 0 Unchecked, 9.13ms Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 2102.38ms Time] [2021-11-12 22:56:59,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-12 22:56:59,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1162. [2021-11-12 22:56:59,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 719 states have (on average 1.8734353268428372) internal successors, (1347), 1156 states have internal predecessors, (1347), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:56:59,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1373 transitions. [2021-11-12 22:56:59,202 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1373 transitions. Word has length 14 [2021-11-12 22:56:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:59,202 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 1373 transitions. [2021-11-12 22:56:59,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:59,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1373 transitions. [2021-11-12 22:56:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 22:56:59,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:59,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:59,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:56:59,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:56:59,419 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:56:59,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:56:59,420 INFO L85 PathProgramCache]: Analyzing trace with hash -344619170, now seen corresponding path program 1 times [2021-11-12 22:56:59,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:56:59,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940465922] [2021-11-12 22:56:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:56:59,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:56:59,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:56:59,421 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:56:59,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:56:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:56:59,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:56:59,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:56:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:59,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:56:59,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:56:59,677 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:56:59,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940465922] [2021-11-12 22:56:59,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940465922] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:56:59,678 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:56:59,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:56:59,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225942516] [2021-11-12 22:56:59,678 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:56:59,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:56:59,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:56:59,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:56:59,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:59,680 INFO L87 Difference]: Start difference. First operand 1162 states and 1373 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:56:59,739 INFO L93 Difference]: Finished difference Result 1102 states and 1287 transitions. [2021-11-12 22:56:59,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:56:59,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-12 22:56:59,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:56:59,748 INFO L225 Difference]: With dead ends: 1102 [2021-11-12 22:56:59,749 INFO L226 Difference]: Without dead ends: 1102 [2021-11-12 22:56:59,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:56:59,750 INFO L933 BasicCegarLoop]: 976 mSDtfsCounter, 1890 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.79ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.24ms IncrementalHoareTripleChecker+Time [2021-11-12 22:56:59,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1898 Valid, 1008 Invalid, 21 Unknown, 0 Unchecked, 3.79ms Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 37.24ms Time] [2021-11-12 22:56:59,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2021-11-12 22:56:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2021-11-12 22:56:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 683 states have (on average 1.8462664714494876) internal successors, (1261), 1096 states have internal predecessors, (1261), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:56:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1287 transitions. [2021-11-12 22:56:59,778 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1287 transitions. Word has length 18 [2021-11-12 22:56:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:56:59,778 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1287 transitions. [2021-11-12 22:56:59,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:56:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1287 transitions. [2021-11-12 22:56:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 22:56:59,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:56:59,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:56:59,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:00,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:00,005 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:00,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:00,006 INFO L85 PathProgramCache]: Analyzing trace with hash -466544200, now seen corresponding path program 1 times [2021-11-12 22:57:00,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:00,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508875392] [2021-11-12 22:57:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:00,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:00,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:00,007 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:00,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:57:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:00,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:57:00,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:00,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:00,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:00,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508875392] [2021-11-12 22:57:00,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508875392] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:00,268 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:00,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 22:57:00,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680342678] [2021-11-12 22:57:00,269 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:00,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:00,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:00,270 INFO L87 Difference]: Start difference. First operand 1102 states and 1287 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:57:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:00,350 INFO L93 Difference]: Finished difference Result 1074 states and 1231 transitions. [2021-11-12 22:57:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:00,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-12 22:57:00,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:00,356 INFO L225 Difference]: With dead ends: 1074 [2021-11-12 22:57:00,356 INFO L226 Difference]: Without dead ends: 1074 [2021-11-12 22:57:00,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:57:00,357 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 916 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.02ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.66ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:00,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 1919 Invalid, 67 Unknown, 0 Unchecked, 8.02ms Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 50.66ms Time] [2021-11-12 22:57:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-11-12 22:57:00,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1072. [2021-11-12 22:57:00,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 667 states have (on average 1.8035982008995501) internal successors, (1203), 1066 states have internal predecessors, (1203), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1229 transitions. [2021-11-12 22:57:00,383 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1229 transitions. Word has length 20 [2021-11-12 22:57:00,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:00,383 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1229 transitions. [2021-11-12 22:57:00,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:57:00,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1229 transitions. [2021-11-12 22:57:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 22:57:00,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:00,385 INFO L514 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] [2021-11-12 22:57:00,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:00,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:00,602 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:00,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531686, now seen corresponding path program 1 times [2021-11-12 22:57:00,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:00,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109289284] [2021-11-12 22:57:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:00,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:00,604 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:00,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:57:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:00,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:57:00,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:00,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:57:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:00,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:01,018 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:01,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109289284] [2021-11-12 22:57:01,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109289284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:01,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:01,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:57:01,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210585678] [2021-11-12 22:57:01,019 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:01,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:57:01,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:57:01,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:57:01,020 INFO L87 Difference]: Start difference. First operand 1072 states and 1229 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-12 22:57:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:03,138 INFO L93 Difference]: Finished difference Result 1525 states and 1766 transitions. [2021-11-12 22:57:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:57:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-12 22:57:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:03,145 INFO L225 Difference]: With dead ends: 1525 [2021-11-12 22:57:03,146 INFO L226 Difference]: Without dead ends: 1525 [2021-11-12 22:57:03,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:03,147 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1467 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1751.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.06ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2071.56ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:03,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 1062 Invalid, 910 Unknown, 0 Unchecked, 8.06ms Time], IncrementalHoareTripleChecker [29 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 2071.56ms Time] [2021-11-12 22:57:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2021-11-12 22:57:03,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1068. [2021-11-12 22:57:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 667 states have (on average 1.7916041979010495) internal successors, (1195), 1062 states have internal predecessors, (1195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1221 transitions. [2021-11-12 22:57:03,176 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1221 transitions. Word has length 34 [2021-11-12 22:57:03,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:03,177 INFO L470 AbstractCegarLoop]: Abstraction has 1068 states and 1221 transitions. [2021-11-12 22:57:03,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-12 22:57:03,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1221 transitions. [2021-11-12 22:57:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-12 22:57:03,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:03,179 INFO L514 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] [2021-11-12 22:57:03,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:03,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:03,391 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:03,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:03,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531687, now seen corresponding path program 1 times [2021-11-12 22:57:03,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:03,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464974535] [2021-11-12 22:57:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:03,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:03,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:03,393 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:03,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:57:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:03,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:57:03,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:03,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:57:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:03,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:04,339 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:04,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464974535] [2021-11-12 22:57:04,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464974535] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:04,340 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:04,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:57:04,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786484769] [2021-11-12 22:57:04,340 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:04,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:57:04,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:04,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:57:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:57:04,341 INFO L87 Difference]: Start difference. First operand 1068 states and 1221 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:57:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:10,814 INFO L93 Difference]: Finished difference Result 1579 states and 1783 transitions. [2021-11-12 22:57:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:57:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-12 22:57:10,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:10,822 INFO L225 Difference]: With dead ends: 1579 [2021-11-12 22:57:10,823 INFO L226 Difference]: Without dead ends: 1579 [2021-11-12 22:57:10,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:57:10,823 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 1944 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5624.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.35ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6349.08ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:10,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1944 Valid, 2136 Invalid, 1261 Unknown, 0 Unchecked, 13.35ms Time], IncrementalHoareTripleChecker [31 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 6349.08ms Time] [2021-11-12 22:57:10,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-11-12 22:57:10,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1064. [2021-11-12 22:57:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 667 states have (on average 1.7796101949025487) internal successors, (1187), 1058 states have internal predecessors, (1187), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1213 transitions. [2021-11-12 22:57:10,851 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1213 transitions. Word has length 34 [2021-11-12 22:57:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:10,851 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 1213 transitions. [2021-11-12 22:57:10,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:57:10,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1213 transitions. [2021-11-12 22:57:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-12 22:57:10,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:10,854 INFO L514 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] [2021-11-12 22:57:10,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:11,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,066 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:11,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1509555205, now seen corresponding path program 1 times [2021-11-12 22:57:11,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:11,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198723861] [2021-11-12 22:57:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:11,067 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:11,068 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:11,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:57:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:11,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:57:11,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:11,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:11,495 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:11,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198723861] [2021-11-12 22:57:11,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198723861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:11,496 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:11,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:57:11,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158522044] [2021-11-12 22:57:11,496 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:11,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:57:11,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:11,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:57:11,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:57:11,497 INFO L87 Difference]: Start difference. First operand 1064 states and 1213 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2021-11-12 22:57:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:11,544 INFO L93 Difference]: Finished difference Result 1052 states and 1193 transitions. [2021-11-12 22:57:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:11,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 52 [2021-11-12 22:57:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:11,549 INFO L225 Difference]: With dead ends: 1052 [2021-11-12 22:57:11,549 INFO L226 Difference]: Without dead ends: 1052 [2021-11-12 22:57:11,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:11,550 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 892 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.90ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.76ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:11,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [900 Valid, 1865 Invalid, 43 Unknown, 0 Unchecked, 1.90ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 30.76ms Time] [2021-11-12 22:57:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-11-12 22:57:11,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2021-11-12 22:57:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 655 states have (on average 1.7816793893129772) internal successors, (1167), 1046 states have internal predecessors, (1167), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1193 transitions. [2021-11-12 22:57:11,572 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1193 transitions. Word has length 52 [2021-11-12 22:57:11,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:11,573 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1193 transitions. [2021-11-12 22:57:11,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2021-11-12 22:57:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1193 transitions. [2021-11-12 22:57:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-12 22:57:11,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:11,574 INFO L514 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, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:11,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-12 22:57:11,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,787 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -881686959, now seen corresponding path program 1 times [2021-11-12 22:57:11,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:11,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702289623] [2021-11-12 22:57:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:11,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:11,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:11,792 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:11,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:57:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:12,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:57:12,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:12,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:57:12,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:57:12,941 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 22:57:12,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2021-11-12 22:57:12,949 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-12 22:57:12,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2021-11-12 22:57:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:12,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:17,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:17,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702289623] [2021-11-12 22:57:17,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702289623] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:17,708 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:17,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:57:17,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218910984] [2021-11-12 22:57:17,708 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:17,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:57:17,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:17,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:57:17,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-12 22:57:17,710 INFO L87 Difference]: Start difference. First operand 1052 states and 1193 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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) [2021-11-12 22:57:22,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:22,707 INFO L93 Difference]: Finished difference Result 1473 states and 1666 transitions. [2021-11-12 22:57:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:57:22,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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 60 [2021-11-12 22:57:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:22,714 INFO L225 Difference]: With dead ends: 1473 [2021-11-12 22:57:22,715 INFO L226 Difference]: Without dead ends: 1473 [2021-11-12 22:57:22,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-12 22:57:22,716 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 1062 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4186.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.03ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 904 IncrementalHoareTripleChecker+Unchecked, 4912.30ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:22,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 1769 Invalid, 2172 Unknown, 0 Unchecked, 14.03ms Time], IncrementalHoareTripleChecker [55 Valid, 1213 Invalid, 0 Unknown, 904 Unchecked, 4912.30ms Time] [2021-11-12 22:57:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-12 22:57:22,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1030. [2021-11-12 22:57:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 665 states have (on average 1.7338345864661655) internal successors, (1153), 1024 states have internal predecessors, (1153), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1179 transitions. [2021-11-12 22:57:22,741 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1179 transitions. Word has length 60 [2021-11-12 22:57:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:22,741 INFO L470 AbstractCegarLoop]: Abstraction has 1030 states and 1179 transitions. [2021-11-12 22:57:22,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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) [2021-11-12 22:57:22,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1179 transitions. [2021-11-12 22:57:22,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-12 22:57:22,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:22,743 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:22,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-12 22:57:22,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:22,969 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:22,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1192602638, now seen corresponding path program 1 times [2021-11-12 22:57:22,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:22,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337638175] [2021-11-12 22:57:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:22,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:22,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:22,972 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:22,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:57:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:23,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:57:23,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:23,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:23,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-12 22:57:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:23,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:23,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337638175] [2021-11-12 22:57:23,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337638175] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:23,844 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:23,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:57:23,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111808554] [2021-11-12 22:57:23,845 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:23,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:57:23,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:23,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:57:23,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:57:23,846 INFO L87 Difference]: Start difference. First operand 1030 states and 1179 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:57:25,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:25,869 INFO L93 Difference]: Finished difference Result 1028 states and 1177 transitions. [2021-11-12 22:57:25,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:57:25,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-12 22:57:25,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:25,875 INFO L225 Difference]: With dead ends: 1028 [2021-11-12 22:57:25,875 INFO L226 Difference]: Without dead ends: 1028 [2021-11-12 22:57:25,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:57:25,875 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 673 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1718.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.75ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1996.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:25,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 942 Invalid, 466 Unknown, 0 Unchecked, 4.75ms Time], IncrementalHoareTripleChecker [14 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 1996.35ms Time] [2021-11-12 22:57:25,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-11-12 22:57:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2021-11-12 22:57:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 665 states have (on average 1.7308270676691728) internal successors, (1151), 1022 states have internal predecessors, (1151), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1177 transitions. [2021-11-12 22:57:25,895 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1177 transitions. Word has length 62 [2021-11-12 22:57:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:25,896 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 1177 transitions. [2021-11-12 22:57:25,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:57:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1177 transitions. [2021-11-12 22:57:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 22:57:25,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:25,898 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:25,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-12 22:57:26,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:26,112 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:26,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:26,113 INFO L85 PathProgramCache]: Analyzing trace with hash -855470841, now seen corresponding path program 1 times [2021-11-12 22:57:26,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:26,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662126397] [2021-11-12 22:57:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:26,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:26,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:26,115 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:26,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:57:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:26,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:57:26,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:26,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:57:26,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-12 22:57:26,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-12 22:57:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:26,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:26,653 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:26,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662126397] [2021-11-12 22:57:26,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662126397] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:26,654 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:26,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:57:26,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447017512] [2021-11-12 22:57:26,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:26,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:57:26,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:26,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:57:26,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:57:26,656 INFO L87 Difference]: Start difference. First operand 1028 states and 1177 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-11-12 22:57:29,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:29,465 INFO L93 Difference]: Finished difference Result 1027 states and 1176 transitions. [2021-11-12 22:57:29,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:57:29,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 [2021-11-12 22:57:29,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:29,470 INFO L225 Difference]: With dead ends: 1027 [2021-11-12 22:57:29,471 INFO L226 Difference]: Without dead ends: 1027 [2021-11-12 22:57:29,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:57:29,472 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 4 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2367.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.55ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2748.57ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:29,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2314 Invalid, 1248 Unknown, 0 Unchecked, 7.55ms Time], IncrementalHoareTripleChecker [1 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 2748.57ms Time] [2021-11-12 22:57:29,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2021-11-12 22:57:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2021-11-12 22:57:29,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 665 states have (on average 1.7293233082706767) internal successors, (1150), 1021 states have internal predecessors, (1150), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1176 transitions. [2021-11-12 22:57:29,497 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1176 transitions. Word has length 65 [2021-11-12 22:57:29,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:29,498 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1176 transitions. [2021-11-12 22:57:29,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-11-12 22:57:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1176 transitions. [2021-11-12 22:57:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 22:57:29,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:29,499 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:29,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-12 22:57:29,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:29,713 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:29,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:29,714 INFO L85 PathProgramCache]: Analyzing trace with hash -855470840, now seen corresponding path program 1 times [2021-11-12 22:57:29,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:29,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765320537] [2021-11-12 22:57:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:29,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:29,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:29,716 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:29,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:57:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:29,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:57:29,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:30,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:57:30,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-12 22:57:30,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-12 22:57:30,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-12 22:57:30,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-12 22:57:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:30,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:30,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:30,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765320537] [2021-11-12 22:57:30,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765320537] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:30,470 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:30,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:57:30,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041234629] [2021-11-12 22:57:30,471 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:30,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:57:30,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:57:30,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:57:30,472 INFO L87 Difference]: Start difference. First operand 1027 states and 1176 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 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) [2021-11-12 22:57:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:38,113 INFO L93 Difference]: Finished difference Result 1026 states and 1175 transitions. [2021-11-12 22:57:38,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:57:38,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 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 [2021-11-12 22:57:38,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:38,120 INFO L225 Difference]: With dead ends: 1026 [2021-11-12 22:57:38,120 INFO L226 Difference]: Without dead ends: 1026 [2021-11-12 22:57:38,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:57:38,121 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 3 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6790.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.62ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7546.29ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:38,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2824 Invalid, 1627 Unknown, 0 Unchecked, 10.62ms Time], IncrementalHoareTripleChecker [2 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 7546.29ms Time] [2021-11-12 22:57:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2021-11-12 22:57:38,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1026. [2021-11-12 22:57:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 664 states have (on average 1.730421686746988) internal successors, (1149), 1020 states have internal predecessors, (1149), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 22:57:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1175 transitions. [2021-11-12 22:57:38,141 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1175 transitions. Word has length 65 [2021-11-12 22:57:38,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:38,141 INFO L470 AbstractCegarLoop]: Abstraction has 1026 states and 1175 transitions. [2021-11-12 22:57:38,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 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) [2021-11-12 22:57:38,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1175 transitions. [2021-11-12 22:57:38,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 22:57:38,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:38,143 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:38,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-12 22:57:38,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:38,357 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:38,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:38,357 INFO L85 PathProgramCache]: Analyzing trace with hash 864578415, now seen corresponding path program 1 times [2021-11-12 22:57:38,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:38,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982762216] [2021-11-12 22:57:38,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:38,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:38,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:38,359 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:38,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 22:57:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:38,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:57:38,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:38,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:38,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:38,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:38,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982762216] [2021-11-12 22:57:38,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982762216] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:57:38,955 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:57:38,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:57:38,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967529239] [2021-11-12 22:57:38,955 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:57:38,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:57:38,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:38,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:57:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:57:38,956 INFO L87 Difference]: Start difference. First operand 1026 states and 1175 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:57:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:39,072 INFO L93 Difference]: Finished difference Result 1036 states and 1188 transitions. [2021-11-12 22:57:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:57:39,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-12 22:57:39,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:39,086 INFO L225 Difference]: With dead ends: 1036 [2021-11-12 22:57:39,086 INFO L226 Difference]: Without dead ends: 1036 [2021-11-12 22:57:39,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:57:39,088 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 11 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.03ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.31ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:39,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1778 Invalid, 32 Unknown, 0 Unchecked, 2.03ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 77.31ms Time] [2021-11-12 22:57:39,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-12 22:57:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1036. [2021-11-12 22:57:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 672 states have (on average 1.7276785714285714) internal successors, (1161), 1029 states have internal predecessors, (1161), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-12 22:57:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1188 transitions. [2021-11-12 22:57:39,124 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1188 transitions. Word has length 73 [2021-11-12 22:57:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:39,125 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 1188 transitions. [2021-11-12 22:57:39,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 22:57:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1188 transitions. [2021-11-12 22:57:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-12 22:57:39,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:39,129 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:39,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:39,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:57:39,343 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:39,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:39,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1645234929, now seen corresponding path program 1 times [2021-11-12 22:57:39,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:39,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270933727] [2021-11-12 22:57:39,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:39,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:39,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:39,345 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:39,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 22:57:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:39,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:57:39,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:39,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:40,028 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:40,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270933727] [2021-11-12 22:57:40,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270933727] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:40,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [905968996] [2021-11-12 22:57:40,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:40,029 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:57:40,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:57:40,031 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:57:40,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-12 22:57:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:40,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:57:40,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:40,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:40,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [905968996] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:40,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083300686] [2021-11-12 22:57:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:57:40,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:57:40,741 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:57:40,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-12 22:57:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:57:40,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:57:40,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:41,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:41,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:41,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083300686] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:41,346 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:57:41,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-12 22:57:41,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695779303] [2021-11-12 22:57:41,347 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:57:41,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:57:41,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:57:41,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:57:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:57:41,349 INFO L87 Difference]: Start difference. First operand 1036 states and 1188 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 22:57:41,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:57:41,846 INFO L93 Difference]: Finished difference Result 1050 states and 1205 transitions. [2021-11-12 22:57:41,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:57:41,847 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2021-11-12 22:57:41,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:57:41,853 INFO L225 Difference]: With dead ends: 1050 [2021-11-12 22:57:41,853 INFO L226 Difference]: Without dead ends: 1044 [2021-11-12 22:57:41,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:57:41,855 INFO L933 BasicCegarLoop]: 890 mSDtfsCounter, 51 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 202.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.15ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 237.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:57:41,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 3556 Invalid, 141 Unknown, 0 Unchecked, 3.15ms Time], IncrementalHoareTripleChecker [33 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 237.82ms Time] [2021-11-12 22:57:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2021-11-12 22:57:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1042. [2021-11-12 22:57:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 678 states have (on average 1.7227138643067847) internal successors, (1168), 1035 states have internal predecessors, (1168), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-12 22:57:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1195 transitions. [2021-11-12 22:57:41,876 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1195 transitions. Word has length 75 [2021-11-12 22:57:41,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:57:41,876 INFO L470 AbstractCegarLoop]: Abstraction has 1042 states and 1195 transitions. [2021-11-12 22:57:41,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 22:57:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1195 transitions. [2021-11-12 22:57:41,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 22:57:41,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:57:41,878 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:57:41,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:42,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:42,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-12 22:57:42,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:42,481 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 22:57:42,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:57:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash -132870065, now seen corresponding path program 2 times [2021-11-12 22:57:42,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:57:42,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402464055] [2021-11-12 22:57:42,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:57:42,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:57:42,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:57:42,483 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:57:42,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 22:57:42,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:57:42,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:57:42,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:57:42,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:43,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:43,607 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:43,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:57:43,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402464055] [2021-11-12 22:57:43,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402464055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:43,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1206355730] [2021-11-12 22:57:43,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:57:43,607 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:57:43,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:57:43,615 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:57:43,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-12 22:57:44,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:57:44,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:57:44,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:57:44,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:57:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:44,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:57:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:57:44,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1206355730] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:57:44,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822539708] [2021-11-12 22:57:44,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:57:44,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:57:44,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:57:44,843 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:57:44,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-12 22:58:15,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:58:15,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:58:15,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-12 22:58:15,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:15,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-12 22:58:15,576 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:58:15,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-12 22:58:15,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-12 22:58:15,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-12 22:58:15,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-12 22:58:15,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-12 23:00:30,282 WARN L227 SmtUtils]: Spent 26.75s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:00:30,283 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-12 23:00:30,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 143 treesize of output 135 [2021-11-12 23:00:52,649 WARN L227 SmtUtils]: Spent 22.35s on a formula simplification. DAG size of input: 118 DAG size of output: 38 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:00:52,650 INFO L354 Elim1Store]: treesize reduction 1178, result has 7.5 percent of original size [2021-11-12 23:00:52,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 183 treesize of output 226 [2021-11-12 23:01:03,918 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-12 23:01:03,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 241 treesize of output 118 [2021-11-12 23:01:03,941 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-12 23:01:03,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 46 [2021-11-12 23:01:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 11 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:01:16,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:01:26,414 WARN L227 SmtUtils]: Spent 9.47s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-12 23:02:49,619 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32))) (let ((.cse10 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|) ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse10) (bvadd .cse10 (_ bv20 32))))) (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32))) (let ((.cse11 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|)) (.cse12 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse12) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse11 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse12)))))))) is different from false [2021-11-12 23:04:01,281 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (and (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32))) (let ((.cse8 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|)) (.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3)) (.cse11 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse12 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse8 .cse9) .cse10 .cse9) .cse11 .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse12) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse8 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse12))))) (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32))) (let ((.cse13 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|) .cse14) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4) .cse14) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse14))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse13) (bvadd (_ bv20 32) .cse13))))) (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse15 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse16 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|) .cse16) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|) .cse16) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|) .cse16) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse16) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse16) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse16))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse15) (bvadd .cse15 (_ bv20 32)))))))) is different from true [2021-11-12 23:05:22,299 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((v_subst_6 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_8)) (.cse13 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3)) (.cse15 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse16 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse10 .cse11) .cse12 .cse11) .cse13 .cse11) .cse14 .cse11) .cse15 .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse16) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse10 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse16))))) (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_5 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse17 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_7) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse18))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd .cse17 (_ bv16 32)) (bvadd .cse17 (_ bv20 32)))))))) is different from false [2021-11-12 23:05:24,311 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((v_subst_6 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_8)) (.cse13 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_3)) (.cse15 (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse16 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse10 .cse11) .cse12 .cse11) .cse13 .cse11) .cse14 .cse11) .cse15 .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse16) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse10 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse16))))) (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_5 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse17 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_7) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_4) .cse18) (bvadd |c_#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse18))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd .cse17 (_ bv16 32)) (bvadd .cse17 (_ bv20 32)))))))) is different from true [2021-11-12 23:05:32,810 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse0 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|)) (.cse2 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|)) (.cse3 (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|)) (.cse4 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse5 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse6 (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|)) (.cse7 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse7)))))) (exists ((|v_#Ultimate.C_memset_#value_16| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr239_103| (_ BitVec 32))) (not (let ((.cse8 (select (select (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |v_#Ultimate.C_memset_#value_16|)))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_104|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_103|) .cse9) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr239_105|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_106| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_108| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9) (bvadd |v_#Ultimate.C_memset_#t~loopctr239_107| |v_#Ultimate.C_memset_#ptr.offset_18|) .cse9))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32)))))) (and (forall ((|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_5 (_ BitVec 32)) (v_subst_4 (_ BitVec 32)) (v_subst_2 (_ BitVec 32)) (v_subst_9 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse10 (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|) .cse11) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_9) .cse11) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_7) .cse11) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_5) .cse11) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_4) .cse11) (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_2) .cse11))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))) (bvule (bvadd (_ bv16 32) .cse10) (bvadd .cse10 (_ bv20 32))))) (forall ((v_subst_6 (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr239| (_ BitVec 32)) (v_subst_3 (_ BitVec 32)) (v_subst_10 (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (v_subst_8 (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#value| (_ BitVec 32))) (let ((.cse12 (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr239|)) (.cse14 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_10)) (.cse15 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_8)) (.cse16 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_6)) (.cse17 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_3)) (.cse18 (bvadd |#Ultimate.C_memset_#ptr.offset| v_subst_1)) (.cse19 (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) |#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_#Ultimate.C_memset_#ptr.base|) .cse12 .cse13) .cse14 .cse13) .cse15 .cse13) .cse16 .cse13) .cse17 .cse13) .cse18 .cse13))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) .cse12 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32)) .cse18 (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) .cse19)))))))) is different from true [2021-11-12 23:06:29,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-12 23:06:29,303 INFO L186 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2021-11-12 23:06:29,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2021-11-12 23:06:29,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622820257] [2021-11-12 23:06:29,304 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2021-11-12 23:06:29,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-12 23:06:29,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:06:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-12 23:06:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1121, Unknown=133, NotChecked=300, Total=1722 [2021-11-12 23:06:29,306 INFO L87 Difference]: Start difference. First operand 1042 states and 1195 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:07:19,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:07:19,011 INFO L93 Difference]: Finished difference Result 1068 states and 1231 transitions. [2021-11-12 23:07:19,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-12 23:07:19,012 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2021-11-12 23:07:19,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:07:19,017 INFO L225 Difference]: With dead ends: 1068 [2021-11-12 23:07:19,017 INFO L226 Difference]: Without dead ends: 1064 [2021-11-12 23:07:19,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 435.0s TimeCoverageRelationStatistics Valid=509, Invalid=2555, Unknown=144, NotChecked=452, Total=3660 [2021-11-12 23:07:19,020 INFO L933 BasicCegarLoop]: 894 mSDtfsCounter, 62 mSDsluCounter, 9769 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2033.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 10663 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.33ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2147.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:07:19,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 10663 Invalid, 381 Unknown, 0 Unchecked, 10.33ms Time], IncrementalHoareTripleChecker [58 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 2147.97ms Time] [2021-11-12 23:07:19,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2021-11-12 23:07:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1054. [2021-11-12 23:07:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 690 states have (on average 1.7159420289855072) internal successors, (1184), 1047 states have internal predecessors, (1184), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-12 23:07:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1211 transitions. [2021-11-12 23:07:19,044 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1211 transitions. Word has length 79 [2021-11-12 23:07:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:07:19,045 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1211 transitions. [2021-11-12 23:07:19,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:07:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1211 transitions. [2021-11-12 23:07:19,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-12 23:07:19,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:07:19,046 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:07:19,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:07:19,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2021-11-12 23:07:19,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-12 23:07:19,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:07:19,660 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-12 23:07:19,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:07:19,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1141860047, now seen corresponding path program 3 times [2021-11-12 23:07:19,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:07:19,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164487533] [2021-11-12 23:07:19,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:19,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:07:19,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:07:19,661 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:07:19,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 23:07:20,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-12 23:07:20,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:20,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:07:20,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:07:22,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:07:27,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:07:27,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164487533] [2021-11-12 23:07:27,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164487533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:27,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [696479699] [2021-11-12 23:07:27,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:27,981 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:07:27,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:07:27,981 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:07:27,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-12 23:07:30,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-12 23:07:30,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:07:30,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:07:30,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:07:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:07:30,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:07:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:07:31,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [696479699] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:07:31,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735933651] [2021-11-12 23:07:31,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:07:31,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:07:31,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:07:31,981 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:07:31,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c925c21e-a9d7-4d35-b8e6-5171657dc75d/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process