./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.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_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/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_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/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_51a82e58-e366-4ef7-850e-8af1b83c64df/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 834766c90c3d5af368509ae691087999af545dba19d7eed6a5d75f823cbb2437 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:18:49,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:18:49,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:18:49,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:18:49,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:18:49,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:18:49,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:18:49,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:18:49,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:18:49,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:18:49,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:18:49,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:18:49,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:18:49,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:18:49,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:18:49,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:18:49,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:18:49,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:18:49,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:18:49,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:18:49,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:18:49,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:18:49,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:18:49,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:18:49,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:18:49,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:18:49,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:18:49,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:18:49,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:18:49,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:18:49,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:18:49,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:18:49,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:18:49,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:18:49,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:18:49,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:18:49,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:18:49,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:18:49,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:18:49,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:18:49,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:18:49,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-12 22:18:49,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:18:49,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:18:49,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:18:49,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:18:49,910 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:18:49,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:18:49,910 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:18:49,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:18:49,911 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:18:49,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:18:49,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:18:49,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:18:49,911 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:18:49,912 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:18:49,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:18:49,912 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:18:49,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:18:49,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:18:49,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:18:49,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:18:49,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:18:49,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:18:49,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:18:49,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:18:49,915 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:18:49,915 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:18:49,915 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:18:49,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:18:49,916 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:18:49,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:18:49,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:18:49,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:18:49,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:18:49,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:18:49,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:18:49,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:18:49,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:18:49,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:18:49,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:18:49,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:18:49,919 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_51a82e58-e366-4ef7-850e-8af1b83c64df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 834766c90c3d5af368509ae691087999af545dba19d7eed6a5d75f823cbb2437 [2021-11-12 22:18:50,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:18:50,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:18:50,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:18:50,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:18:50,235 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:18:50,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i [2021-11-12 22:18:50,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/2aec04065/a6bd69a9ba5e4c3a94c7f7010d21ce80/FLAG2b4450bbf [2021-11-12 22:18:51,051 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:18:51,053 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i [2021-11-12 22:18:51,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/2aec04065/a6bd69a9ba5e4c3a94c7f7010d21ce80/FLAG2b4450bbf [2021-11-12 22:18:51,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/2aec04065/a6bd69a9ba5e4c3a94c7f7010d21ce80 [2021-11-12 22:18:51,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:18:51,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:18:51,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:18:51,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:18:51,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:18:51,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:18:51" (1/1) ... [2021-11-12 22:18:51,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5873504b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:51, skipping insertion in model container [2021-11-12 22:18:51,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:18:51" (1/1) ... [2021-11-12 22:18:51,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:18:51,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:18:51,843 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_51a82e58-e366-4ef7-850e-8af1b83c64df/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i[33021,33034] [2021-11-12 22:18:52,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:18:52,056 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 22:18:52,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31e2800c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:52, skipping insertion in model container [2021-11-12 22:18:52,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:18:52,058 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:18:52,060 INFO L158 Benchmark]: Toolchain (without parser) took 852.22ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 54.9MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:18:52,061 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 67.8MB in the end (delta: 49.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:18:52,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.09ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 55.2MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:18:52,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 67.8MB in the end (delta: 49.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.09ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 55.2MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/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_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/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_51a82e58-e366-4ef7-850e-8af1b83c64df/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 834766c90c3d5af368509ae691087999af545dba19d7eed6a5d75f823cbb2437 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:18:54,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:18:54,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:18:54,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:18:54,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:18:54,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:18:54,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:18:54,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:18:54,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:18:54,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:18:54,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:18:54,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:18:54,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:18:54,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:18:54,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:18:54,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:18:54,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:18:54,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:18:54,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:18:54,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:18:54,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:18:54,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:18:54,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:18:54,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:18:54,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:18:54,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:18:54,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:18:54,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:18:54,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:18:54,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:18:54,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:18:54,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:18:54,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:18:54,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:18:54,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:18:54,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:18:54,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:18:54,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:18:54,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:18:54,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:18:54,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:18:54,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-12 22:18:54,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:18:54,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:18:54,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:18:54,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:18:54,759 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:18:54,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:18:54,760 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:18:54,760 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:18:54,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:18:54,760 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:18:54,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-12 22:18:54,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-12 22:18:54,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:18:54,762 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:18:54,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:18:54,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:18:54,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:18:54,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:18:54,763 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-12 22:18:54,764 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-12 22:18:54,764 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-12 22:18:54,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:18:54,765 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:18:54,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:18:54,765 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:18:54,765 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:18:54,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:18:54,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:18:54,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:18:54,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:18:54,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:18:54,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:18:54,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:18:54,768 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:18:54,768 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:18:54,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:18:54,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:18:54,769 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_51a82e58-e366-4ef7-850e-8af1b83c64df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 834766c90c3d5af368509ae691087999af545dba19d7eed6a5d75f823cbb2437 [2021-11-12 22:18:55,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:18:55,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:18:55,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:18:55,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:18:55,215 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:18:55,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i [2021-11-12 22:18:55,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/570db72c2/c383927a2d4242d09b9a3446470500a1/FLAG7cc417ae7 [2021-11-12 22:18:56,082 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:18:56,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i [2021-11-12 22:18:56,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/570db72c2/c383927a2d4242d09b9a3446470500a1/FLAG7cc417ae7 [2021-11-12 22:18:56,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/data/570db72c2/c383927a2d4242d09b9a3446470500a1 [2021-11-12 22:18:56,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:18:56,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:18:56,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:18:56,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:18:56,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:18:56,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:18:56" (1/1) ... [2021-11-12 22:18:56,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:56, skipping insertion in model container [2021-11-12 22:18:56,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:18:56" (1/1) ... [2021-11-12 22:18:56,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:18:56,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:18:56,852 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_51a82e58-e366-4ef7-850e-8af1b83c64df/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i[33021,33034] [2021-11-12 22:18:57,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:18:57,098 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:18:57,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:18:57,148 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_51a82e58-e366-4ef7-850e-8af1b83c64df/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i[33021,33034] [2021-11-12 22:18:57,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:18:57,289 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:18:57,346 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_51a82e58-e366-4ef7-850e-8af1b83c64df/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-2.i[33021,33034] [2021-11-12 22:18:57,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:18:57,479 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:18:57,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57 WrapperNode [2021-11-12 22:18:57,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:18:57,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:18:57,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:18:57,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:18:57,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:18:57,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:18:57,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:18:57,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:18:57,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:18:57,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:18:57,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:18:57,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:18:57,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (1/1) ... [2021-11-12 22:18:57,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:18:57,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:18:57,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:18:57,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:18:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:18:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:18:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:18:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:18:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 22:18:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 22:18:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:18:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:18:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:18:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:18:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:18:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:18:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:18:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:18:57,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:18:58,256 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 22:19:05,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:19:05,609 INFO L299 CfgBuilder]: Removed 69 assume(true) statements. [2021-11-12 22:19:05,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:19:05 BoogieIcfgContainer [2021-11-12 22:19:05,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:19:05,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:19:05,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:19:05,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:19:05,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:18:56" (1/3) ... [2021-11-12 22:19:05,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a42484d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:19:05, skipping insertion in model container [2021-11-12 22:19:05,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:18:57" (2/3) ... [2021-11-12 22:19:05,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a42484d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:19:05, skipping insertion in model container [2021-11-12 22:19:05,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:19:05" (3/3) ... [2021-11-12 22:19:05,629 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test4-2.i [2021-11-12 22:19:05,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:19:05,637 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 753 error locations. [2021-11-12 22:19:05,709 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:19:05,722 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 22:19:05,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 753 error locations. [2021-11-12 22:19:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 1473 states, 707 states have (on average 2.267326732673267) internal successors, (1603), 1464 states have internal predecessors, (1603), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:19:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:19:05,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:05,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:19:05,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-12 22:19:05,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:05,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105735870] [2021-11-12 22:19:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:05,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:05,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:05,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:19:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:05,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:19:05,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:06,065 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 22:19:06,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:06,085 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 22:19:06,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:06,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105735870] [2021-11-12 22:19:06,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105735870] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:06,087 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:06,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:19:06,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28094995] [2021-11-12 22:19:06,091 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:06,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:19:06,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:19:06,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:19:06,156 INFO L87 Difference]: Start difference. First operand has 1473 states, 707 states have (on average 2.267326732673267) internal successors, (1603), 1464 states have internal predecessors, (1603), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:06,334 INFO L93 Difference]: Finished difference Result 1455 states and 1540 transitions. [2021-11-12 22:19:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:19:06,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-12 22:19:06,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:06,371 INFO L225 Difference]: With dead ends: 1455 [2021-11-12 22:19:06,371 INFO L226 Difference]: Without dead ends: 1453 [2021-11-12 22:19:06,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:19:06,377 INFO L933 BasicCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:06,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 18.36ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:19:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2021-11-12 22:19:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2021-11-12 22:19:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 698 states have (on average 2.157593123209169) internal successors, (1506), 1444 states have internal predecessors, (1506), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:19:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1538 transitions. [2021-11-12 22:19:06,567 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1538 transitions. Word has length 5 [2021-11-12 22:19:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:06,567 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 1538 transitions. [2021-11-12 22:19:06,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1538 transitions. [2021-11-12 22:19:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:19:06,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:06,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:19:06,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:06,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:06,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:06,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:06,783 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-12 22:19:06,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:06,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594402811] [2021-11-12 22:19:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:06,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:06,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:06,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:06,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:19:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:07,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:19:07,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:07,080 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 22:19:07,101 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 22:19:07,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:07,136 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:07,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594402811] [2021-11-12 22:19:07,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594402811] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:07,147 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:07,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:19:07,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208979930] [2021-11-12 22:19:07,149 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:07,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:19:07,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:07,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:19:07,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:19:07,155 INFO L87 Difference]: Start difference. First operand 1453 states and 1538 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:19:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:10,663 INFO L93 Difference]: Finished difference Result 1490 states and 1588 transitions. [2021-11-12 22:19:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:19:10,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-12 22:19:10,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:10,674 INFO L225 Difference]: With dead ends: 1490 [2021-11-12 22:19:10,674 INFO L226 Difference]: Without dead ends: 1490 [2021-11-12 22:19:10,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 22:19:10,676 INFO L933 BasicCegarLoop]: 810 mSDtfsCounter, 1159 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2819.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.76ms SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3397.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:10,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 1015 Invalid, 936 Unknown, 0 Unchecked, 24.76ms Time], IncrementalHoareTripleChecker [105 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3397.34ms Time] [2021-11-12 22:19:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-11-12 22:19:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1436. [2021-11-12 22:19:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 774 states have (on average 2.0) internal successors, (1548), 1427 states have internal predecessors, (1548), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:19:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1580 transitions. [2021-11-12 22:19:10,730 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1580 transitions. Word has length 5 [2021-11-12 22:19:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:10,730 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1580 transitions. [2021-11-12 22:19:10,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:19:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1580 transitions. [2021-11-12 22:19:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:19:10,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:10,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:19:10,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:10,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:10,940 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:10,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:10,941 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-12 22:19:10,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:10,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175355062] [2021-11-12 22:19:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:10,941 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:10,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:10,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:19:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:11,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:19:11,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:11,135 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 22:19:11,168 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 22:19:11,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:11,248 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 22:19:11,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:11,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175355062] [2021-11-12 22:19:11,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175355062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:11,249 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:11,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-12 22:19:11,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763350353] [2021-11-12 22:19:11,250 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:11,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:19:11,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:11,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:19:11,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:19:11,251 INFO L87 Difference]: Start difference. First operand 1436 states and 1580 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 22:19:18,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:18,821 INFO L93 Difference]: Finished difference Result 1790 states and 1955 transitions. [2021-11-12 22:19:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:19:18,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 5 [2021-11-12 22:19:18,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:18,834 INFO L225 Difference]: With dead ends: 1790 [2021-11-12 22:19:18,834 INFO L226 Difference]: Without dead ends: 1790 [2021-11-12 22:19:18,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 22:19:18,836 INFO L933 BasicCegarLoop]: 1141 mSDtfsCounter, 1119 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6633.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.10ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7466.15ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:18,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1722 Invalid, 1054 Unknown, 0 Unchecked, 21.10ms Time], IncrementalHoareTripleChecker [28 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 7466.15ms Time] [2021-11-12 22:19:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2021-11-12 22:19:18,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1592. [2021-11-12 22:19:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 940 states have (on average 1.9723404255319148) internal successors, (1854), 1583 states have internal predecessors, (1854), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:19:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 1886 transitions. [2021-11-12 22:19:18,898 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 1886 transitions. Word has length 5 [2021-11-12 22:19:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:18,899 INFO L470 AbstractCegarLoop]: Abstraction has 1592 states and 1886 transitions. [2021-11-12 22:19:18,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 22:19:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 1886 transitions. [2021-11-12 22:19:18,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 22:19:18,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:18,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 22:19:18,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:19:19,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:19,116 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:19,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-12 22:19:19,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:19,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625436862] [2021-11-12 22:19:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:19,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:19,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:19,119 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:19,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:19:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:19,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:19:19,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:19,258 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 22:19:19,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:19,283 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 22:19:19,284 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:19,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625436862] [2021-11-12 22:19:19,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625436862] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:19,285 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:19,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:19:19,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924365532] [2021-11-12 22:19:19,285 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:19,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:19:19,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:19:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:19:19,287 INFO L87 Difference]: Start difference. First operand 1592 states and 1886 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 22:19:19,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:19,463 INFO L93 Difference]: Finished difference Result 2937 states and 3494 transitions. [2021-11-12 22:19:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:19:19,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 6 [2021-11-12 22:19:19,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:19,482 INFO L225 Difference]: With dead ends: 2937 [2021-11-12 22:19:19,482 INFO L226 Difference]: Without dead ends: 2937 [2021-11-12 22:19:19,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 22:19:19,484 INFO L933 BasicCegarLoop]: 1662 mSDtfsCounter, 2286 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.17ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.47ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:19,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 3368 Invalid, 19 Unknown, 0 Unchecked, 8.17ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 111.47ms Time] [2021-11-12 22:19:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2021-11-12 22:19:19,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2408. [2021-11-12 22:19:19,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1756 states have (on average 1.9646924829157175) internal successors, (3450), 2393 states have internal predecessors, (3450), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3494 transitions. [2021-11-12 22:19:19,571 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3494 transitions. Word has length 6 [2021-11-12 22:19:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:19,572 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3494 transitions. [2021-11-12 22:19:19,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 22:19:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3494 transitions. [2021-11-12 22:19:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:19:19,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:19,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:19,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 22:19:19,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:19,786 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-12 22:19:19,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:19,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954642559] [2021-11-12 22:19:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:19,788 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:19,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:19,789 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:19,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:19:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:19,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:19:19,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:19,995 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 22:19:19,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:20,027 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 22:19:20,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:20,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954642559] [2021-11-12 22:19:20,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954642559] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:20,027 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:20,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:19:20,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557358572] [2021-11-12 22:19:20,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:20,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:19:20,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:20,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:19:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:19:20,029 INFO L87 Difference]: Start difference. First operand 2408 states and 3494 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:20,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:20,115 INFO L93 Difference]: Finished difference Result 2348 states and 3408 transitions. [2021-11-12 22:19:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:19:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-12 22:19:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:20,136 INFO L225 Difference]: With dead ends: 2348 [2021-11-12 22:19:20,136 INFO L226 Difference]: Without dead ends: 2348 [2021-11-12 22:19:20,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 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 22:19:20,138 INFO L933 BasicCegarLoop]: 1387 mSDtfsCounter, 1347 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.20ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:20,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1363 Valid, 1453 Invalid, 14 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 39.20ms Time] [2021-11-12 22:19:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2021-11-12 22:19:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2348. [2021-11-12 22:19:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1720 states have (on average 1.955813953488372) internal successors, (3364), 2333 states have internal predecessors, (3364), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3408 transitions. [2021-11-12 22:19:20,230 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3408 transitions. Word has length 11 [2021-11-12 22:19:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:20,231 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 3408 transitions. [2021-11-12 22:19:20,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3408 transitions. [2021-11-12 22:19:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:19:20,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:20,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:20,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:20,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:20,446 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-12 22:19:20,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:20,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677109862] [2021-11-12 22:19:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:20,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:20,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:20,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:20,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:19:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:20,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:19:20,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:20,687 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 22:19:20,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:20,732 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 22:19:20,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:20,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677109862] [2021-11-12 22:19:20,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677109862] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:20,733 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:20,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-12 22:19:20,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069289101] [2021-11-12 22:19:20,734 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:20,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:19:20,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:20,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:19:20,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:20,735 INFO L87 Difference]: Start difference. First operand 2348 states and 3408 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 22:19:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:20,903 INFO L93 Difference]: Finished difference Result 2320 states and 3352 transitions. [2021-11-12 22:19:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:19:20,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 22:19:20,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:20,920 INFO L225 Difference]: With dead ends: 2320 [2021-11-12 22:19:20,920 INFO L226 Difference]: Without dead ends: 2320 [2021-11-12 22:19:20,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 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 22:19:20,921 INFO L933 BasicCegarLoop]: 1342 mSDtfsCounter, 2626 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.53ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.48ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:20,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2642 Valid, 2710 Invalid, 92 Unknown, 0 Unchecked, 9.53ms Time], IncrementalHoareTripleChecker [58 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 113.48ms Time] [2021-11-12 22:19:20,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2021-11-12 22:19:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2318. [2021-11-12 22:19:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1704 states have (on average 1.9401408450704225) internal successors, (3306), 2303 states have internal predecessors, (3306), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3350 transitions. [2021-11-12 22:19:20,996 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3350 transitions. Word has length 13 [2021-11-12 22:19:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:20,996 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 3350 transitions. [2021-11-12 22:19:20,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 22:19:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3350 transitions. [2021-11-12 22:19:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:19:20,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:20,998 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] [2021-11-12 22:19:21,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:21,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:21,213 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:21,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-12 22:19:21,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:21,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948400551] [2021-11-12 22:19:21,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:21,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:21,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:21,216 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:21,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:19:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:21,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:19:21,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:21,448 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 22:19:21,570 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 22:19:21,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:21,685 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 22:19:21,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:21,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948400551] [2021-11-12 22:19:21,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948400551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:21,687 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:21,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:19:21,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953552638] [2021-11-12 22:19:21,688 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:21,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:19:21,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:21,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:19:21,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:19:21,689 INFO L87 Difference]: Start difference. First operand 2318 states and 3350 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:26,056 INFO L93 Difference]: Finished difference Result 3150 states and 4376 transitions. [2021-11-12 22:19:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:19:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:19:26,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:26,076 INFO L225 Difference]: With dead ends: 3150 [2021-11-12 22:19:26,076 INFO L226 Difference]: Without dead ends: 3150 [2021-11-12 22:19:26,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:26,077 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 2585 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3626.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.74ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4273.12ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:26,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2598 Valid, 1340 Invalid, 1456 Unknown, 0 Unchecked, 15.74ms Time], IncrementalHoareTripleChecker [61 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 4273.12ms Time] [2021-11-12 22:19:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2021-11-12 22:19:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 2314. [2021-11-12 22:19:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1704 states have (on average 1.9354460093896713) internal successors, (3298), 2299 states have internal predecessors, (3298), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:26,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3342 transitions. [2021-11-12 22:19:26,167 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3342 transitions. Word has length 27 [2021-11-12 22:19:26,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:26,168 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3342 transitions. [2021-11-12 22:19:26,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3342 transitions. [2021-11-12 22:19:26,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 22:19:26,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:26,169 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] [2021-11-12 22:19:26,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-12 22:19:26,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:26,383 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:26,385 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-12 22:19:26,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:26,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070428401] [2021-11-12 22:19:26,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:26,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:26,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:26,387 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:26,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 22:19:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:26,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:19:26,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:26,623 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 22:19:26,896 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 22:19:26,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:27,407 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 22:19:27,407 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:27,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070428401] [2021-11-12 22:19:27,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070428401] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:27,408 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:27,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:19:27,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058607751] [2021-11-12 22:19:27,408 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:27,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:19:27,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:27,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:19:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:19:27,410 INFO L87 Difference]: Start difference. First operand 2314 states and 3342 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:40,802 INFO L93 Difference]: Finished difference Result 2787 states and 3741 transitions. [2021-11-12 22:19:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:19:40,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-12 22:19:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:40,820 INFO L225 Difference]: With dead ends: 2787 [2021-11-12 22:19:40,820 INFO L226 Difference]: Without dead ends: 2787 [2021-11-12 22:19:40,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:19:40,821 INFO L933 BasicCegarLoop]: 1009 mSDtfsCounter, 1283 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11720.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.78ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13141.14ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:40,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 3278 Invalid, 3063 Unknown, 0 Unchecked, 20.78ms Time], IncrementalHoareTripleChecker [38 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 13141.14ms Time] [2021-11-12 22:19:40,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-11-12 22:19:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2310. [2021-11-12 22:19:40,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1704 states have (on average 1.9307511737089202) internal successors, (3290), 2295 states have internal predecessors, (3290), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3334 transitions. [2021-11-12 22:19:40,888 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3334 transitions. Word has length 27 [2021-11-12 22:19:40,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:40,888 INFO L470 AbstractCegarLoop]: Abstraction has 2310 states and 3334 transitions. [2021-11-12 22:19:40,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3334 transitions. [2021-11-12 22:19:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-12 22:19:40,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:40,890 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] [2021-11-12 22:19:40,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 22:19:41,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:41,106 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:41,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:41,106 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-12 22:19:41,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:41,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636981954] [2021-11-12 22:19:41,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:41,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:41,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:41,108 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:41,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 22:19:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:41,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:19:41,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:41,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:41,571 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 22:19:41,571 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:41,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636981954] [2021-11-12 22:19:41,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636981954] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:41,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:41,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:19:41,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994442229] [2021-11-12 22:19:41,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:41,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:19:41,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:41,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:19:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:19:41,574 INFO L87 Difference]: Start difference. First operand 2310 states and 3334 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 22:19:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:41,654 INFO L93 Difference]: Finished difference Result 2298 states and 3314 transitions. [2021-11-12 22:19:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:19:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-12 22:19:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:41,671 INFO L225 Difference]: With dead ends: 2298 [2021-11-12 22:19:41,671 INFO L226 Difference]: Without dead ends: 2298 [2021-11-12 22:19:41,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 22:19:41,672 INFO L933 BasicCegarLoop]: 1336 mSDtfsCounter, 1294 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.43ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:41,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 2688 Invalid, 43 Unknown, 0 Unchecked, 4.43ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 47.82ms Time] [2021-11-12 22:19:41,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2021-11-12 22:19:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2298. [2021-11-12 22:19:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1692 states have (on average 1.9326241134751774) internal successors, (3270), 2283 states have internal predecessors, (3270), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3314 transitions. [2021-11-12 22:19:41,732 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3314 transitions. Word has length 42 [2021-11-12 22:19:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:41,733 INFO L470 AbstractCegarLoop]: Abstraction has 2298 states and 3314 transitions. [2021-11-12 22:19:41,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 22:19:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3314 transitions. [2021-11-12 22:19:41,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-12 22:19:41,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:41,735 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] [2021-11-12 22:19:41,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:41,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:41,949 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:41,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:41,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-12 22:19:41,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:41,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142469351] [2021-11-12 22:19:41,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:41,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:41,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:41,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:41,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 22:19:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:42,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:19:42,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:42,585 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 22:19:42,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:42,993 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:42,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142469351] [2021-11-12 22:19:42,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142469351] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:42,994 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:42,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:19:42,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251750094] [2021-11-12 22:19:42,994 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:42,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:19:42,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:19:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:19:42,995 INFO L87 Difference]: Start difference. First operand 2298 states and 3314 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 22:19:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:43,329 INFO L93 Difference]: Finished difference Result 2309 states and 3163 transitions. [2021-11-12 22:19:43,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:19:43,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-12 22:19:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:43,347 INFO L225 Difference]: With dead ends: 2309 [2021-11-12 22:19:43,347 INFO L226 Difference]: Without dead ends: 2309 [2021-11-12 22:19:43,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 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 22:19:43,349 INFO L933 BasicCegarLoop]: 1415 mSDtfsCounter, 269 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 263.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.15ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 310.74ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:43,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 2626 Invalid, 97 Unknown, 0 Unchecked, 4.15ms Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 310.74ms Time] [2021-11-12 22:19:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-11-12 22:19:43,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2114. [2021-11-12 22:19:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 1508 states have (on average 1.9330238726790452) internal successors, (2915), 2099 states have internal predecessors, (2915), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:19:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2959 transitions. [2021-11-12 22:19:43,406 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 2959 transitions. Word has length 50 [2021-11-12 22:19:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:43,407 INFO L470 AbstractCegarLoop]: Abstraction has 2114 states and 2959 transitions. [2021-11-12 22:19:43,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 22:19:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 2959 transitions. [2021-11-12 22:19:43,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-12 22:19:43,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:43,409 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] [2021-11-12 22:19:43,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:43,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:43,622 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:43,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-12 22:19:43,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:43,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678289131] [2021-11-12 22:19:43,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:43,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:43,626 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:43,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 22:19:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:43,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:19:43,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:43,977 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 22:19:43,987 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 22:19:44,785 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-12 22:19:44,786 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 26 treesize of output 28 [2021-11-12 22:19:44,794 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-12 22:19:44,795 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 25 treesize of output 21 [2021-11-12 22:19:44,835 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 22:19:44,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:19:50,124 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 22:19:50,124 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:19:50,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678289131] [2021-11-12 22:19:50,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678289131] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:50,125 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:50,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:19:50,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250232418] [2021-11-12 22:19:50,125 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:50,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:19:50,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:19:50,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:19:50,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-12 22:19:50,127 INFO L87 Difference]: Start difference. First operand 2114 states and 2959 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 22:19:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:59,206 INFO L93 Difference]: Finished difference Result 2820 states and 3599 transitions. [2021-11-12 22:19:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:19:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 53 [2021-11-12 22:19:59,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:59,223 INFO L225 Difference]: With dead ends: 2820 [2021-11-12 22:19:59,223 INFO L226 Difference]: Without dead ends: 2820 [2021-11-12 22:19:59,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-12 22:19:59,225 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 1855 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7701.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.36ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1570 IncrementalHoareTripleChecker+Unchecked, 8957.48ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:59,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1862 Valid, 1996 Invalid, 3374 Unknown, 0 Unchecked, 22.36ms Time], IncrementalHoareTripleChecker [99 Valid, 1705 Invalid, 0 Unknown, 1570 Unchecked, 8957.48ms Time] [2021-11-12 22:19:59,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-11-12 22:19:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2209. [2021-11-12 22:19:59,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1635 states have (on average 1.8862385321100918) internal successors, (3084), 2191 states have internal predecessors, (3084), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:19:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3134 transitions. [2021-11-12 22:19:59,286 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3134 transitions. Word has length 53 [2021-11-12 22:19:59,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:59,287 INFO L470 AbstractCegarLoop]: Abstraction has 2209 states and 3134 transitions. [2021-11-12 22:19:59,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 22:19:59,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3134 transitions. [2021-11-12 22:19:59,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 22:19:59,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:59,288 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] [2021-11-12 22:19:59,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 22:19:59,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:19:59,503 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:19:59,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:59,504 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-12 22:19:59,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:19:59,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819736121] [2021-11-12 22:19:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:59,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:19:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:19:59,506 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:19:59,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 22:19:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:59,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:19:59,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:19:59,996 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 22:19:59,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:00,081 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 22:20:00,435 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 22:20:00,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:20:00,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819736121] [2021-11-12 22:20:00,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819736121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:20:00,435 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:20:00,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 22:20:00,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412257299] [2021-11-12 22:20:00,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:20:00,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:20:00,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:20:00,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:20:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:20:00,437 INFO L87 Difference]: Start difference. First operand 2209 states and 3134 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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 22:20:04,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:20:04,060 INFO L93 Difference]: Finished difference Result 2207 states and 3130 transitions. [2021-11-12 22:20:04,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:20:04,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-12 22:20:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:20:04,071 INFO L225 Difference]: With dead ends: 2207 [2021-11-12 22:20:04,071 INFO L226 Difference]: Without dead ends: 2207 [2021-11-12 22:20:04,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 22:20:04,073 INFO L933 BasicCegarLoop]: 775 mSDtfsCounter, 2930 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3061.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.26ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3574.31ms IncrementalHoareTripleChecker+Time [2021-11-12 22:20:04,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2936 Valid, 1462 Invalid, 755 Unknown, 0 Unchecked, 11.26ms Time], IncrementalHoareTripleChecker [41 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 3574.31ms Time] [2021-11-12 22:20:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2021-11-12 22:20:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2021-11-12 22:20:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1635 states have (on average 1.8837920489296636) internal successors, (3080), 2189 states have internal predecessors, (3080), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:20:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3130 transitions. [2021-11-12 22:20:04,128 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3130 transitions. Word has length 55 [2021-11-12 22:20:04,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:20:04,129 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3130 transitions. [2021-11-12 22:20:04,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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 22:20:04,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3130 transitions. [2021-11-12 22:20:04,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 22:20:04,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:20:04,130 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] [2021-11-12 22:20:04,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 22:20:04,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:20:04,345 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:20:04,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:20:04,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-12 22:20:04,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:20:04,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153854458] [2021-11-12 22:20:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:20:04,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:20:04,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:20:04,347 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:20:04,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 22:20:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:20:04,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:20:04,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:04,700 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 22:20:04,720 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 22:20:04,770 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 22:20:04,790 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 22:20:04,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:20:04,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:20:04,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153854458] [2021-11-12 22:20:04,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153854458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:20:04,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:20:04,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:20:04,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010303151] [2021-11-12 22:20:04,918 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:20:04,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:20:04,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:20:04,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:20:04,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:20:04,919 INFO L87 Difference]: Start difference. First operand 2207 states and 3130 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 22:20:09,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:20:09,907 INFO L93 Difference]: Finished difference Result 2206 states and 3128 transitions. [2021-11-12 22:20:09,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:20:09,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-12 22:20:09,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:20:09,916 INFO L225 Difference]: With dead ends: 2206 [2021-11-12 22:20:09,916 INFO L226 Difference]: Without dead ends: 2206 [2021-11-12 22:20:09,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 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 22:20:09,917 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 4 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4197.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.91ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4899.06ms IncrementalHoareTripleChecker+Time [2021-11-12 22:20:09,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3324 Invalid, 1906 Unknown, 0 Unchecked, 13.91ms Time], IncrementalHoareTripleChecker [1 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 4899.06ms Time] [2021-11-12 22:20:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-11-12 22:20:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2206. [2021-11-12 22:20:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1635 states have (on average 1.8825688073394495) internal successors, (3078), 2188 states have internal predecessors, (3078), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:20:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3128 transitions. [2021-11-12 22:20:09,999 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3128 transitions. Word has length 58 [2021-11-12 22:20:09,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:20:09,999 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 3128 transitions. [2021-11-12 22:20:09,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 22:20:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3128 transitions. [2021-11-12 22:20:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-12 22:20:10,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:20:10,001 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] [2021-11-12 22:20:10,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 22:20:10,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:20:10,223 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:20:10,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:20:10,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-12 22:20:10,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:20:10,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478683517] [2021-11-12 22:20:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:20:10,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:20:10,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:20:10,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:20:10,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 22:20:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:20:10,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:20:10,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:10,619 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 22:20:10,644 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 22:20:10,657 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 22:20:10,723 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 22:20:10,727 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 22:20:10,752 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 22:20:10,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:11,102 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 22:20:11,102 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:20:11,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478683517] [2021-11-12 22:20:11,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478683517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:20:11,103 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:20:11,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-12 22:20:11,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495094231] [2021-11-12 22:20:11,103 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:20:11,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:20:11,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:20:11,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:20:11,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:20:11,105 INFO L87 Difference]: Start difference. First operand 2206 states and 3128 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 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 22:20:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:20:24,147 INFO L93 Difference]: Finished difference Result 2205 states and 3126 transitions. [2021-11-12 22:20:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:20:24,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 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 58 [2021-11-12 22:20:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:20:24,153 INFO L225 Difference]: With dead ends: 2205 [2021-11-12 22:20:24,153 INFO L226 Difference]: Without dead ends: 2205 [2021-11-12 22:20:24,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 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 22:20:24,155 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 4 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11685.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.23ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12923.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:20:24,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3263 Invalid, 1966 Unknown, 0 Unchecked, 15.23ms Time], IncrementalHoareTripleChecker [2 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 12923.17ms Time] [2021-11-12 22:20:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-12 22:20:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2021-11-12 22:20:24,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1633 states have (on average 1.883649724433558) internal successors, (3076), 2187 states have internal predecessors, (3076), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-12 22:20:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3126 transitions. [2021-11-12 22:20:24,199 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3126 transitions. Word has length 58 [2021-11-12 22:20:24,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:20:24,199 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 3126 transitions. [2021-11-12 22:20:24,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 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 22:20:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3126 transitions. [2021-11-12 22:20:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-12 22:20:24,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:20:24,201 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] [2021-11-12 22:20:24,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-12 22:20:24,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:20:24,417 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:20:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:20:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1427434238, now seen corresponding path program 1 times [2021-11-12 22:20:24,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:20:24,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144476707] [2021-11-12 22:20:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:20:24,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:20:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:20:24,421 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:20:24,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 22:20:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:20:24,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 22:20:24,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:24,886 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 22:20:24,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:25,059 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 22:20:25,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:20:25,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144476707] [2021-11-12 22:20:25,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144476707] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:20:25,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:20:25,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:20:25,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134389377] [2021-11-12 22:20:25,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:20:25,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:20:25,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:20:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:20:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:20:25,062 INFO L87 Difference]: Start difference. First operand 2205 states and 3126 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 22:20:25,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:20:25,231 INFO L93 Difference]: Finished difference Result 2215 states and 3143 transitions. [2021-11-12 22:20:25,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:20:25,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 66 [2021-11-12 22:20:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:20:25,243 INFO L225 Difference]: With dead ends: 2215 [2021-11-12 22:20:25,243 INFO L226 Difference]: Without dead ends: 2215 [2021-11-12 22:20:25,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 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 22:20:25,244 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 7 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 109.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6494 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.05ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:20:25,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 6494 Invalid, 62 Unknown, 0 Unchecked, 5.05ms Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 125.37ms Time] [2021-11-12 22:20:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2021-11-12 22:20:25,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215. [2021-11-12 22:20:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1641 states have (on average 1.881779402803169) internal successors, (3088), 2196 states have internal predecessors, (3088), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-12 22:20:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3143 transitions. [2021-11-12 22:20:25,294 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3143 transitions. Word has length 66 [2021-11-12 22:20:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:20:25,314 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 3143 transitions. [2021-11-12 22:20:25,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 22:20:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3143 transitions. [2021-11-12 22:20:25,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-12 22:20:25,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:20:25,315 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] [2021-11-12 22:20:25,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 22:20:25,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:20:25,516 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:20:25,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:20:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1761910302, now seen corresponding path program 1 times [2021-11-12 22:20:25,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:20:25,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582150308] [2021-11-12 22:20:25,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:20:25,518 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:20:25,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:20:25,519 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:20:25,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 22:20:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:20:25,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:20:25,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:26,032 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 22:20:26,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:26,336 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 22:20:26,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:20:26,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582150308] [2021-11-12 22:20:26,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582150308] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:20:26,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [767625416] [2021-11-12 22:20:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:20:26,337 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:20:26,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:20:26,339 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:20:26,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-12 22:20:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:20:26,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:20:26,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:26,808 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 22:20:26,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:26,970 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 22:20:26,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [767625416] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:20:26,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111405980] [2021-11-12 22:20:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:20:26,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:20:26,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:20:26,973 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:20:26,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 22:20:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:20:27,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:20:27,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:27,349 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 22:20:27,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:27,631 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 22:20:27,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111405980] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:20:27,632 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:20:27,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-12 22:20:27,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841336912] [2021-11-12 22:20:27,637 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:20:27,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:20:27,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:20:27,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:20:27,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:20:27,642 INFO L87 Difference]: Start difference. First operand 2215 states and 3143 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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 22:20:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:20:28,394 INFO L93 Difference]: Finished difference Result 2229 states and 3164 transitions. [2021-11-12 22:20:28,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-12 22:20:28,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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 68 [2021-11-12 22:20:28,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:20:28,403 INFO L225 Difference]: With dead ends: 2229 [2021-11-12 22:20:28,403 INFO L226 Difference]: Without dead ends: 2223 [2021-11-12 22:20:28,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:20:28,404 INFO L933 BasicCegarLoop]: 1304 mSDtfsCounter, 34 mSDsluCounter, 6491 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 316.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7795 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.00ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 368.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:20:28,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 7795 Invalid, 189 Unknown, 0 Unchecked, 7.00ms Time], IncrementalHoareTripleChecker [44 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 368.62ms Time] [2021-11-12 22:20:28,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-12 22:20:28,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2221. [2021-11-12 22:20:28,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1647 states have (on average 1.8791742562234366) internal successors, (3095), 2202 states have internal predecessors, (3095), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-12 22:20:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3150 transitions. [2021-11-12 22:20:28,468 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3150 transitions. Word has length 68 [2021-11-12 22:20:28,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:20:28,469 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 3150 transitions. [2021-11-12 22:20:28,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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 22:20:28,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3150 transitions. [2021-11-12 22:20:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-12 22:20:28,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:20:28,470 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] [2021-11-12 22:20:28,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-12 22:20:28,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-12 22:20:28,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 22:20:29,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:20:29,088 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 749 more)] === [2021-11-12 22:20:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:20:29,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1602933666, now seen corresponding path program 2 times [2021-11-12 22:20:29,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:20:29,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671047288] [2021-11-12 22:20:29,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:20:29,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:20:29,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:20:29,091 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:20:29,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 22:20:29,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:20:29,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:20:29,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:20:29,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:29,889 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 22:20:29,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:30,702 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 22:20:30,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:20:30,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671047288] [2021-11-12 22:20:30,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671047288] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:20:30,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1642901768] [2021-11-12 22:20:30,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:20:30,703 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:20:30,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:20:30,704 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:20:30,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-12 22:20:32,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:20:32,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:20:32,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 22:20:32,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:32,163 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 22:20:32,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:20:32,543 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 22:20:32,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1642901768] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:20:32,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903487] [2021-11-12 22:20:32,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:20:32,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:20:32,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:20:32,546 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:20:32,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a82e58-e366-4ef7-850e-8af1b83c64df/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-12 22:20:44,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 22:20:44,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 22:20:44,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:20:44,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:20:44,056 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 22:20:44,295 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-12 22:20:44,298 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 14 treesize of output 14 [2021-11-12 22:20:44,353 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 18 treesize of output 14 [2021-11-12 22:22:43,186 WARN L227 SmtUtils]: Spent 34.52s 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 22:22:43,187 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-12 22:22:43,187 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 75 treesize of output 79 [2021-11-12 22:22:43,879 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-12 22:22:43,880 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 125 treesize of output 38 [2021-11-12 22:22:44,016 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:44,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:22:46,078 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 22:22:46,078 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 60 treesize of output 59 [2021-11-12 22:28:36,106 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-12 22:28:36,106 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 113 treesize of output 112 [2021-11-12 22:28:39,195 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$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|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |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|))))) is different from false [2021-11-12 22:28:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:55,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:55,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 22:28:55,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-12 22:28:55,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547351458] [2021-11-12 22:28:55,117 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 22:28:55,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-12 22:28:55,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:55,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-12 22:28:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1527, Unknown=201, NotChecked=84, Total=1980 [2021-11-12 22:28:55,120 INFO L87 Difference]: Start difference. First operand 2221 states and 3150 transitions. Second operand has 45 states, 43 states have (on average 4.976744186046512) internal successors, (214), 43 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-12 22:28:58,997 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_112| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-12 22:30:12,595 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_118| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-12 22:30:51,581 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_116| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr322|)) is different from false [2021-11-12 22:30:53,601 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr322_114| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 22:30:55,627 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr322_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr322|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-12 22:30:57,645 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr322|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr322| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr322|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_109| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr322|) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr322_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr322_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr322_87| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false