./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:19:00,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:19:00,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:19:00,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:19:00,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:19:00,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:19:00,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:19:00,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:19:00,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:19:00,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:19:00,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:19:00,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:19:00,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:19:00,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:19:00,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:19:00,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:19:00,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:19:00,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:19:00,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:19:00,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:19:00,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:19:00,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:19:00,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:19:00,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:19:00,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:19:00,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:19:00,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:19:00,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:19:00,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:19:00,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:19:00,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:19:00,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:19:00,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:19:00,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:19:00,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:19:00,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:19:00,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:19:00,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:19:00,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:19:00,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:19:00,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:19:00,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 05:19:00,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:19:00,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:19:00,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:19:00,979 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:19:00,980 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:19:00,980 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:19:00,980 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:19:00,980 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:19:00,981 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:19:00,981 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:19:00,982 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:19:00,982 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:19:00,982 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:19:00,983 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:19:00,983 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:19:00,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:19:00,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:19:00,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:19:00,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:19:00,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 05:19:00,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:19:00,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:19:00,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:19:00,985 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 05:19:00,985 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 05:19:00,986 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 05:19:00,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:19:00,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:19:00,988 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:19:00,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:19:00,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:19:00,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:19:00,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:19:00,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:19:00,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:19:00,989 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:19:00,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:19:00,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:19:00,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:19:00,990 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_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2021-11-03 05:19:01,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:19:01,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:19:01,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:19:01,278 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:19:01,279 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:19:01,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-03 05:19:01,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/9de1cf920/6bbad10afeb74fd3a7d78e0482a074f6/FLAG2c8b6fe4f [2021-11-03 05:19:01,807 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:19:01,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-03 05:19:01,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/9de1cf920/6bbad10afeb74fd3a7d78e0482a074f6/FLAG2c8b6fe4f [2021-11-03 05:19:02,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/9de1cf920/6bbad10afeb74fd3a7d78e0482a074f6 [2021-11-03 05:19:02,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:19:02,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:19:02,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:02,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:19:02,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:19:02,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:02" (1/1) ... [2021-11-03 05:19:02,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31af3954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:02, skipping insertion in model container [2021-11-03 05:19:02,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:02" (1/1) ... [2021-11-03 05:19:02,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:19:02,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:02,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:02,536 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) [2021-11-03 05:19:02,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34dd1b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:02, skipping insertion in model container [2021-11-03 05:19:02,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:02,538 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:19:02,540 INFO L168 Benchmark]: Toolchain (without parser) took 371.23 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 71.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:02,540 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:19:02,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.31 ms. Allocated memory is still 98.6 MB. Free memory was 55.9 MB in the beginning and 71.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:19:02,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.31 ms. Allocated memory is still 98.6 MB. Free memory was 55.9 MB in the beginning and 71.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: 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_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:19:04,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:19:04,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:19:04,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:19:04,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:19:04,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:19:04,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:19:04,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:19:04,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:19:04,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:19:04,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:19:04,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:19:04,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:19:04,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:19:04,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:19:04,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:19:04,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:19:04,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:19:04,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:19:04,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:19:04,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:19:04,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:19:04,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:19:04,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:19:04,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:19:04,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:19:04,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:19:04,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:19:04,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:19:04,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:19:04,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:19:04,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:19:04,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:19:04,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:19:04,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:19:04,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:19:04,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:19:04,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:19:04,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:19:04,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:19:04,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:19:04,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-03 05:19:04,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:19:04,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:19:04,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:19:04,623 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:19:04,623 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:19:04,623 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:19:04,623 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:19:04,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:19:04,624 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:19:04,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:19:04,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:19:04,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:19:04,626 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:19:04,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 05:19:04,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:19:04,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:19:04,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:19:04,627 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 05:19:04,628 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 05:19:04,628 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 05:19:04,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:19:04,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:19:04,629 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:19:04,629 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:19:04,629 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:19:04,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:19:04,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:19:04,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:19:04,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:19:04,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:19:04,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:19:04,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:19:04,631 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:19:04,631 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:19:04,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:19:04,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:19:04,632 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_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2021-11-03 05:19:05,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:19:05,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:19:05,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:19:05,072 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:19:05,073 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:19:05,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-03 05:19:05,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/7ad903050/e5f85b4c66ce4574b005f21dae26fc5f/FLAG7900c3cf9 [2021-11-03 05:19:05,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:19:05,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2021-11-03 05:19:05,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/7ad903050/e5f85b4c66ce4574b005f21dae26fc5f/FLAG7900c3cf9 [2021-11-03 05:19:05,946 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/data/7ad903050/e5f85b4c66ce4574b005f21dae26fc5f [2021-11-03 05:19:05,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:19:05,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:19:05,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:05,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:19:05,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:19:05,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:05" (1/1) ... [2021-11-03 05:19:05,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb3b4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:05, skipping insertion in model container [2021-11-03 05:19:05,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:19:05" (1/1) ... [2021-11-03 05:19:05,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:19:06,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:06,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:06,395 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:19:06,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:19:06,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:06,485 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:19:06,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:19:06,600 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:19:06,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06 WrapperNode [2021-11-03 05:19:06,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:19:06,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:19:06,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:19:06,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:19:06,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:19:06,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:19:06,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:19:06,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:19:06,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:19:06,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:19:06,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:19:06,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:19:06,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (1/1) ... [2021-11-03 05:19:06,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:19:06,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:19:06,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:19:06,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:19:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:19:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:19:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:19:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:19:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:19:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:19:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:19:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:19:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:19:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:19:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:19:08,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:19:08,443 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-03 05:19:08,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:19:08 BoogieIcfgContainer [2021-11-03 05:19:08,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:19:08,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:19:08,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:19:08,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:19:08,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:19:05" (1/3) ... [2021-11-03 05:19:08,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9f601c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:19:08, skipping insertion in model container [2021-11-03 05:19:08,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:19:06" (2/3) ... [2021-11-03 05:19:08,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e9f601c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:19:08, skipping insertion in model container [2021-11-03 05:19:08,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:19:08" (3/3) ... [2021-11-03 05:19:08,468 INFO L111 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02-2.i [2021-11-03 05:19:08,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:19:08,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 132 error locations. [2021-11-03 05:19:08,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:19:08,565 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 [2021-11-03 05:19:08,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2021-11-03 05:19:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 134 states have (on average 2.1791044776119404) internal successors, (292), 266 states have internal predecessors, (292), 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) [2021-11-03 05:19:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 05:19:08,606 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:08,606 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 05:19:08,607 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2021-11-03 05:19:08,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:08,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853452943] [2021-11-03 05:19:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:08,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:08,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:08,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:08,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:19:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:08,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:19:08,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:08,775 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 [2021-11-03 05:19:08,851 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 05:19:08,852 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 19 treesize of output 24 [2021-11-03 05:19:08,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:08,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:08,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:08,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853452943] [2021-11-03 05:19:08,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853452943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:08,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:08,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:19:08,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616301914] [2021-11-03 05:19:08,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:19:08,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:08,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:19:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:19:08,989 INFO L87 Difference]: Start difference. First operand has 267 states, 134 states have (on average 2.1791044776119404) internal successors, (292), 266 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:09,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:09,836 INFO L93 Difference]: Finished difference Result 285 states and 303 transitions. [2021-11-03 05:19:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:19:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-03 05:19:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:09,854 INFO L225 Difference]: With dead ends: 285 [2021-11-03 05:19:09,854 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 05:19:09,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:19:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 05:19:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 257. [2021-11-03 05:19:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 133 states have (on average 2.0601503759398496) internal successors, (274), 256 states have internal predecessors, (274), 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) [2021-11-03 05:19:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 274 transitions. [2021-11-03 05:19:09,927 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 274 transitions. Word has length 4 [2021-11-03 05:19:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:09,928 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 274 transitions. [2021-11-03 05:19:09,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:09,929 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 274 transitions. [2021-11-03 05:19:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 05:19:09,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:09,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 05:19:09,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:19:10,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:10,141 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:10,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:10,142 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-11-03 05:19:10,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:10,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553573829] [2021-11-03 05:19:10,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:10,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:10,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:10,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:10,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:19:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:10,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:19:10,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:10,232 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 [2021-11-03 05:19:10,240 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 [2021-11-03 05:19:10,327 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-03 05:19:10,329 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 28 treesize of output 30 [2021-11-03 05:19:10,337 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 05:19:10,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-03 05:19:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:10,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:10,623 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:10,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553573829] [2021-11-03 05:19:10,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553573829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:10,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:10,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 05:19:10,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492546348] [2021-11-03 05:19:10,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:19:10,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:10,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:19:10,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:19:10,631 INFO L87 Difference]: Start difference. First operand 257 states and 274 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-11-03 05:19:20,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:20,451 INFO L93 Difference]: Finished difference Result 396 states and 422 transitions. [2021-11-03 05:19:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 05:19:20,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 4 [2021-11-03 05:19:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:20,454 INFO L225 Difference]: With dead ends: 396 [2021-11-03 05:19:20,455 INFO L226 Difference]: Without dead ends: 396 [2021-11-03 05:19:20,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:19:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-03 05:19:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 270. [2021-11-03 05:19:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 150 states have (on average 1.9733333333333334) internal successors, (296), 269 states have internal predecessors, (296), 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) [2021-11-03 05:19:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 296 transitions. [2021-11-03 05:19:20,469 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 296 transitions. Word has length 4 [2021-11-03 05:19:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:20,470 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 296 transitions. [2021-11-03 05:19:20,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-11-03 05:19:20,470 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 296 transitions. [2021-11-03 05:19:20,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:19:20,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:20,471 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:19:20,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:20,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:20,682 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:20,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash 28694727, now seen corresponding path program 1 times [2021-11-03 05:19:20,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:20,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939224510] [2021-11-03 05:19:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:20,684 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:20,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:20,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:20,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:19:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:20,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:19:20,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:20,787 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 [2021-11-03 05:19:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:20,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:20,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:20,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939224510] [2021-11-03 05:19:20,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939224510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:20,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:20,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:19:20,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783508832] [2021-11-03 05:19:20,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:19:20,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:20,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:19:20,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:20,830 INFO L87 Difference]: Start difference. First operand 270 states and 296 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) [2021-11-03 05:19:21,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:21,410 INFO L93 Difference]: Finished difference Result 283 states and 305 transitions. [2021-11-03 05:19:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:19:21,410 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 [2021-11-03 05:19:21,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:21,412 INFO L225 Difference]: With dead ends: 283 [2021-11-03 05:19:21,412 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 05:19:21,413 INFO L786 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 [2021-11-03 05:19:21,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 05:19:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 266. [2021-11-03 05:19:21,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 150 states have (on average 1.9333333333333333) internal successors, (290), 265 states have internal predecessors, (290), 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) [2021-11-03 05:19:21,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2021-11-03 05:19:21,431 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 5 [2021-11-03 05:19:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:21,431 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2021-11-03 05:19:21,431 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) [2021-11-03 05:19:21,431 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2021-11-03 05:19:21,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:19:21,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:21,432 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:19:21,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:21,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:21,643 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:21,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:21,643 INFO L85 PathProgramCache]: Analyzing trace with hash 28694728, now seen corresponding path program 1 times [2021-11-03 05:19:21,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:21,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240170302] [2021-11-03 05:19:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:21,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:21,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:21,645 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:21,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:19:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:21,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:19:21,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:21,725 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 [2021-11-03 05:19:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:21,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:21,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:21,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240170302] [2021-11-03 05:19:21,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240170302] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:21,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:21,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:19:21,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207584723] [2021-11-03 05:19:21,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:19:21,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:19:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:19:21,827 INFO L87 Difference]: Start difference. First operand 266 states and 290 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) [2021-11-03 05:19:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:23,303 INFO L93 Difference]: Finished difference Result 411 states and 443 transitions. [2021-11-03 05:19:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:19:23,304 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 [2021-11-03 05:19:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:23,307 INFO L225 Difference]: With dead ends: 411 [2021-11-03 05:19:23,307 INFO L226 Difference]: Without dead ends: 411 [2021-11-03 05:19:23,307 INFO L786 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 [2021-11-03 05:19:23,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-11-03 05:19:23,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 268. [2021-11-03 05:19:23,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 154 states have (on average 1.896103896103896) internal successors, (292), 267 states have internal predecessors, (292), 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) [2021-11-03 05:19:23,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 292 transitions. [2021-11-03 05:19:23,317 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 292 transitions. Word has length 5 [2021-11-03 05:19:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:23,318 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 292 transitions. [2021-11-03 05:19:23,336 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) [2021-11-03 05:19:23,336 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 292 transitions. [2021-11-03 05:19:23,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:19:23,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:23,337 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:23,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:19:23,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:23,541 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:23,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:23,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1328501123, now seen corresponding path program 1 times [2021-11-03 05:19:23,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:23,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453008035] [2021-11-03 05:19:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:23,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:23,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:23,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:23,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:19:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:23,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:19:23,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:23,662 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 [2021-11-03 05:19:23,727 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:19:23,727 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 15 treesize of output 15 [2021-11-03 05:19:23,865 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 05:19:23,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-11-03 05:19:23,899 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 05:19:23,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-03 05:19:23,958 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 29 treesize of output 21 [2021-11-03 05:19:23,963 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 18 treesize of output 10 [2021-11-03 05:19:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:24,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:34,876 WARN L207 SmtUtils]: Spent 8.28 s on a formula simplification that was a NOOP. DAG size: 26 [2021-11-03 05:19:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:39,100 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:39,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453008035] [2021-11-03 05:19:39,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453008035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:39,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:39,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:19:39,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236634232] [2021-11-03 05:19:39,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:19:39,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:39,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:19:39,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=36, Unknown=3, NotChecked=0, Total=56 [2021-11-03 05:19:39,102 INFO L87 Difference]: Start difference. First operand 268 states and 292 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:41,053 INFO L93 Difference]: Finished difference Result 291 states and 317 transitions. [2021-11-03 05:19:41,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:19:41,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 05:19:41,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:41,062 INFO L225 Difference]: With dead ends: 291 [2021-11-03 05:19:41,063 INFO L226 Difference]: Without dead ends: 291 [2021-11-03 05:19:41,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=30, Invalid=57, Unknown=3, NotChecked=0, Total=90 [2021-11-03 05:19:41,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-03 05:19:41,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 274. [2021-11-03 05:19:41,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 160 states have (on average 1.8625) internal successors, (298), 273 states have internal predecessors, (298), 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) [2021-11-03 05:19:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 298 transitions. [2021-11-03 05:19:41,072 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 298 transitions. Word has length 10 [2021-11-03 05:19:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:41,072 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 298 transitions. [2021-11-03 05:19:41,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 298 transitions. [2021-11-03 05:19:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 05:19:41,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:41,074 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:41,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 05:19:41,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:41,285 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:41,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:41,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1328641074, now seen corresponding path program 1 times [2021-11-03 05:19:41,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:41,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471928095] [2021-11-03 05:19:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:41,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:41,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:41,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:41,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:19:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:41,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:19:41,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:41,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:41,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:41,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471928095] [2021-11-03 05:19:41,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471928095] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:41,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:41,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:19:41,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422453801] [2021-11-03 05:19:41,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:19:41,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:41,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:19:41,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:41,457 INFO L87 Difference]: Start difference. First operand 274 states and 298 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:41,480 INFO L93 Difference]: Finished difference Result 265 states and 287 transitions. [2021-11-03 05:19:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:19:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 05:19:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:41,482 INFO L225 Difference]: With dead ends: 265 [2021-11-03 05:19:41,483 INFO L226 Difference]: Without dead ends: 265 [2021-11-03 05:19:41,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-03 05:19:41,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2021-11-03 05:19:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 155 states have (on average 1.8516129032258064) internal successors, (287), 264 states have internal predecessors, (287), 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) [2021-11-03 05:19:41,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 287 transitions. [2021-11-03 05:19:41,490 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 287 transitions. Word has length 10 [2021-11-03 05:19:41,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:41,490 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 287 transitions. [2021-11-03 05:19:41,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:41,491 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 287 transitions. [2021-11-03 05:19:41,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:19:41,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:41,492 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:41,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:41,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:41,696 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1761805906, now seen corresponding path program 1 times [2021-11-03 05:19:41,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:41,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64639471] [2021-11-03 05:19:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:41,698 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:41,699 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:41,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:19:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:41,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:19:41,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:41,854 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 05:19:41,854 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 05:19:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:41,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:41,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:41,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64639471] [2021-11-03 05:19:41,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64639471] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:41,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:41,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:19:41,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023747971] [2021-11-03 05:19:41,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:19:41,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:19:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:41,921 INFO L87 Difference]: Start difference. First operand 265 states and 287 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:42,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:42,634 INFO L93 Difference]: Finished difference Result 304 states and 328 transitions. [2021-11-03 05:19:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:19:42,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 05:19:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:42,639 INFO L225 Difference]: With dead ends: 304 [2021-11-03 05:19:42,639 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 05:19:42,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:19:42,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 05:19:42,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 245. [2021-11-03 05:19:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 159 states have (on average 1.7169811320754718) internal successors, (273), 244 states have internal predecessors, (273), 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) [2021-11-03 05:19:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 273 transitions. [2021-11-03 05:19:42,646 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 273 transitions. Word has length 11 [2021-11-03 05:19:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:42,646 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 273 transitions. [2021-11-03 05:19:42,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 273 transitions. [2021-11-03 05:19:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:19:42,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:42,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:42,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:42,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:42,859 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:42,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1761805907, now seen corresponding path program 1 times [2021-11-03 05:19:42,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:42,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802765182] [2021-11-03 05:19:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:42,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:42,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:42,861 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:42,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:19:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:42,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:19:42,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:43,032 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-03 05:19:43,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-03 05:19:43,040 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 20 treesize of output 18 [2021-11-03 05:19:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:43,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:43,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:43,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802765182] [2021-11-03 05:19:43,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802765182] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:43,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:43,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:19:43,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694130581] [2021-11-03 05:19:43,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:19:43,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:19:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:19:43,162 INFO L87 Difference]: Start difference. First operand 245 states and 273 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:44,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:44,583 INFO L93 Difference]: Finished difference Result 350 states and 376 transitions. [2021-11-03 05:19:44,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:19:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 05:19:44,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:44,586 INFO L225 Difference]: With dead ends: 350 [2021-11-03 05:19:44,586 INFO L226 Difference]: Without dead ends: 350 [2021-11-03 05:19:44,587 INFO L786 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 [2021-11-03 05:19:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-03 05:19:44,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 227. [2021-11-03 05:19:44,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 159 states have (on average 1.6037735849056605) internal successors, (255), 226 states have internal predecessors, (255), 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) [2021-11-03 05:19:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 255 transitions. [2021-11-03 05:19:44,593 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 255 transitions. Word has length 11 [2021-11-03 05:19:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:44,594 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 255 transitions. [2021-11-03 05:19:44,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 255 transitions. [2021-11-03 05:19:44,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:19:44,594 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:44,594 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:44,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:44,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:44,809 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2003218563, now seen corresponding path program 1 times [2021-11-03 05:19:44,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:44,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780763910] [2021-11-03 05:19:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:44,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:44,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:44,810 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:44,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:19:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:44,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:19:44,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:44,961 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 05:19:44,961 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-03 05:19:44,995 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 25 treesize of output 21 [2021-11-03 05:19:45,060 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 35 treesize of output 23 [2021-11-03 05:19:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:45,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:45,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:45,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:45,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780763910] [2021-11-03 05:19:45,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780763910] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:45,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:45,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:19:45,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093098813] [2021-11-03 05:19:45,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:19:45,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:45,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:19:45,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:19:45,193 INFO L87 Difference]: Start difference. First operand 227 states and 255 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:46,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:46,727 INFO L93 Difference]: Finished difference Result 283 states and 321 transitions. [2021-11-03 05:19:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 05:19:46,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 05:19:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:46,730 INFO L225 Difference]: With dead ends: 283 [2021-11-03 05:19:46,730 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 05:19:46,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:19:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 05:19:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 233. [2021-11-03 05:19:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 165 states have (on average 1.606060606060606) internal successors, (265), 232 states have internal predecessors, (265), 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) [2021-11-03 05:19:46,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 265 transitions. [2021-11-03 05:19:46,736 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 265 transitions. Word has length 15 [2021-11-03 05:19:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:46,736 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 265 transitions. [2021-11-03 05:19:46,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:19:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 265 transitions. [2021-11-03 05:19:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:19:46,737 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:46,737 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:46,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:46,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:46,948 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:46,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:46,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2003218562, now seen corresponding path program 1 times [2021-11-03 05:19:46,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:46,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469965993] [2021-11-03 05:19:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:46,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:46,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:46,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:46,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:19:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:47,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:19:47,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:47,106 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-03 05:19:47,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-03 05:19:47,174 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 [2021-11-03 05:19:47,185 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 28 treesize of output 24 [2021-11-03 05:19:47,369 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 54 treesize of output 36 [2021-11-03 05:19:47,374 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 33 treesize of output 21 [2021-11-03 05:19:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:47,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:19:47,928 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:19:47,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469965993] [2021-11-03 05:19:47,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469965993] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:19:47,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:19:47,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-03 05:19:47,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000840585] [2021-11-03 05:19:47,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:19:47,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:19:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:19:47,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:19:47,930 INFO L87 Difference]: Start difference. First operand 233 states and 265 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-11-03 05:19:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:19:51,778 INFO L93 Difference]: Finished difference Result 235 states and 263 transitions. [2021-11-03 05:19:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:19:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 05:19:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:19:51,781 INFO L225 Difference]: With dead ends: 235 [2021-11-03 05:19:51,781 INFO L226 Difference]: Without dead ends: 235 [2021-11-03 05:19:51,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:19:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-03 05:19:51,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2021-11-03 05:19:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 232 states have internal predecessors, (261), 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) [2021-11-03 05:19:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 261 transitions. [2021-11-03 05:19:51,787 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 261 transitions. Word has length 15 [2021-11-03 05:19:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:19:51,787 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 261 transitions. [2021-11-03 05:19:51,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-11-03 05:19:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 261 transitions. [2021-11-03 05:19:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 05:19:51,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:19:51,789 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:19:51,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:19:51,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:19:52,000 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:19:52,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:19:52,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1799893576, now seen corresponding path program 1 times [2021-11-03 05:19:52,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:19:52,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558338221] [2021-11-03 05:19:52,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:19:52,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:19:52,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:19:52,001 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:19:52,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:19:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:19:52,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:19:52,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:19:52,255 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 05:19:52,255 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 19 treesize of output 21 [2021-11-03 05:19:52,303 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 29 treesize of output 25 [2021-11-03 05:19:52,605 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-03 05:19:52,605 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 4 case distinctions, treesize of input 138 treesize of output 49 [2021-11-03 05:19:52,695 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 45 treesize of output 27 [2021-11-03 05:19:52,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 05:19:52,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:19:52,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:19:52,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-03 05:19:54,910 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_create_data_~counter~0 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem11.base| (let ((.cse0 (bvmul ULTIMATE.start_create_data_~counter~0 (_ bv4 32)))) (store (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem11.base|) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse0) v_DerPreprocessor_1) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse0) v_DerPreprocessor_2) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse0) v_DerPreprocessor_3) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse0) v_DerPreprocessor_4))) c_ULTIMATE.start_create_data_~data~0.base) (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))))))) (_ bv1 1)))) is different from false [2021-11-03 05:19:56,943 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_create_data_~counter~0 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32))) (= (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse2 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse2))) (store |c_#memory_$Pointer$.base| .cse0 (let ((.cse1 (bvmul ULTIMATE.start_create_data_~counter~0 (_ bv4 32)))) (store (store (store (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse1) v_DerPreprocessor_1) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse1) v_DerPreprocessor_2) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse1) v_DerPreprocessor_3) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse1) v_DerPreprocessor_4)))) c_ULTIMATE.start_create_data_~data~0.base) .cse2)))))))))))) (_ bv1 1)) (_ bv0 1))) is different from false [2021-11-03 05:20:29,448 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:20:29,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558338221] [2021-11-03 05:20:29,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:20:29,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [406580802] [2021-11-03 05:20:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:20:29,449 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:20:29,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:20:29,458 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:20:29,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-03 05:20:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:20:29,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:20:29,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:20:29,845 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-11-03 05:20:29,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 40 [2021-11-03 05:20:29,902 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 29 treesize of output 25 [2021-11-03 05:20:30,117 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-03 05:20:30,117 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 4 case distinctions, treesize of input 140 treesize of output 51 [2021-11-03 05:20:30,192 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 45 treesize of output 27 [2021-11-03 05:20:30,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 05:20:30,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:20:30,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:20:30,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-11-03 05:21:00,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:21:00,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996777830] [2021-11-03 05:21:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:21:00,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:21:00,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:21:00,352 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:21:00,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 05:21:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:21:00,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:21:00,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:21:00,561 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 05:21:00,562 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 20 treesize of output 22 [2021-11-03 05:21:00,590 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 29 treesize of output 25 [2021-11-03 05:21:00,781 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-03 05:21:00,782 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 4 case distinctions, treesize of input 139 treesize of output 50 [2021-11-03 05:21:00,845 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 45 treesize of output 27 [2021-11-03 05:21:00,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 05:21:00,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:21:00,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:21:00,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-03 05:21:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:21:15,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996777830] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:21:15,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:21:15,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-11-03 05:21:15,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237780747] [2021-11-03 05:21:15,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 05:21:15,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:21:15,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 05:21:15,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=126, Unknown=6, NotChecked=50, Total=240 [2021-11-03 05:21:15,618 INFO L87 Difference]: Start difference. First operand 233 states and 261 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-11-03 05:21:18,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:21:18,970 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2021-11-03 05:21:18,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:21:18,971 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-03 05:21:18,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:21:18,972 INFO L225 Difference]: With dead ends: 237 [2021-11-03 05:21:18,972 INFO L226 Difference]: Without dead ends: 237 [2021-11-03 05:21:18,973 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=67, Invalid=145, Unknown=6, NotChecked=54, Total=272 [2021-11-03 05:21:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-03 05:21:18,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 231. [2021-11-03 05:21:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 165 states have (on average 1.5696969696969696) internal successors, (259), 230 states have internal predecessors, (259), 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) [2021-11-03 05:21:18,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 259 transitions. [2021-11-03 05:21:18,979 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 259 transitions. Word has length 20 [2021-11-03 05:21:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:21:18,979 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 259 transitions. [2021-11-03 05:21:18,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-11-03 05:21:18,980 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 259 transitions. [2021-11-03 05:21:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-03 05:21:18,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:21:18,981 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:21:18,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-11-03 05:21:19,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:21:19,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:21:19,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:21:19,584 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-03 05:21:19,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:21:19,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1799893575, now seen corresponding path program 1 times [2021-11-03 05:21:19,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:21:19,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321284827] [2021-11-03 05:21:19,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:21:19,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:21:19,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:21:19,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:21:19,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:21:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:21:19,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:21:19,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:21:19,894 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-03 05:21:19,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-03 05:21:19,913 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 12 treesize of output 10 [2021-11-03 05:21:19,972 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 [2021-11-03 05:21:19,983 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 [2021-11-03 05:21:20,262 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-03 05:21:20,263 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 4 case distinctions, treesize of input 241 treesize of output 122 [2021-11-03 05:21:20,340 INFO L354 Elim1Store]: treesize reduction 714, result has 1.2 percent of original size [2021-11-03 05:21:20,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 131 treesize of output 24 [2021-11-03 05:21:20,476 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 44 treesize of output 32 [2021-11-03 05:21:20,479 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 29 treesize of output 17 [2021-11-03 05:21:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:21:20,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:21:21,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:21:21,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-11-03 05:21:21,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:21:21,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-11-03 05:21:44,518 WARN L207 SmtUtils]: Spent 6.85 s on a formula simplification that was a NOOP. DAG size: 51 [2021-11-03 05:22:06,322 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 52 [2021-11-03 05:22:08,464 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse0 (let ((.cse2 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (select (select (let ((.cse1 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse2))) (store |c_#memory_$Pointer$.offset| .cse1 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse1) |ULTIMATE.start_create_data_#t~mem11.offset| v_DerPreprocessor_13) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32)) v_DerPreprocessor_14) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32)) v_DerPreprocessor_15) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32)) v_DerPreprocessor_16))) c_ULTIMATE.start_create_data_~data~0.base) .cse2)))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_DerPreprocessor_19 (_ BitVec 32)) (v_DerPreprocessor_20 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32)) (v_DerPreprocessor_17 (_ BitVec 32)) (v_DerPreprocessor_18 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (let ((.cse7 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse7)) (.cse4 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32))) (.cse5 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32))) (.cse6 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse3 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse3) |ULTIMATE.start_create_data_#t~mem11.offset| v_DerPreprocessor_13) .cse4 v_DerPreprocessor_14) .cse5 v_DerPreprocessor_15) .cse6 v_DerPreprocessor_16)) c_ULTIMATE.start_create_data_~data~0.base) .cse7) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse3 (store (store (store (store (select |c_#memory_$Pointer$.base| .cse3) |ULTIMATE.start_create_data_#t~mem11.offset| v_DerPreprocessor_17) .cse4 v_DerPreprocessor_18) .cse5 v_DerPreprocessor_19) .cse6 v_DerPreprocessor_20)) c_ULTIMATE.start_create_data_~data~0.base) .cse7))))))) is different from false [2021-11-03 05:22:17,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:22:17,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321284827] [2021-11-03 05:22:17,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-03 05:22:17,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [499140337] [2021-11-03 05:22:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:22:17,206 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:22:17,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:22:17,206 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:22:17,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c477dd-6265-4a9e-8c01-ffde273534fa/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-03 05:22:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:22:17,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:22:17,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:22:17,564 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 13 treesize of output 11 [2021-11-03 05:22:17,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-03 05:22:17,598 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 [2021-11-03 05:22:17,606 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 [2021-11-03 05:22:17,790 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-03 05:22:17,791 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 4 case distinctions, treesize of input 241 treesize of output 122 [2021-11-03 05:22:17,867 INFO L354 Elim1Store]: treesize reduction 714, result has 1.2 percent of original size [2021-11-03 05:22:17,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 131 treesize of output 24 [2021-11-03 05:22:17,979 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 44 treesize of output 32 [2021-11-03 05:22:17,985 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 29 treesize of output 17 [2021-11-03 05:22:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:22:18,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:22:18,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:22:18,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-11-03 05:22:18,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:22:18,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-11-03 05:22:42,892 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_25 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32)) (v_DerPreprocessor_28 (_ BitVec 32)) (v_DerPreprocessor_26 (_ BitVec 32)) (v_DerPreprocessor_27 (_ BitVec 32))) (let ((.cse6 (bvmul c_ULTIMATE.start_create_data_~counter~0 (_ bv4 32))) (.cse5 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse5)) (.cse1 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse6)) (.cse2 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse6)) (.cse3 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse6)) (.cse4 (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse6))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse0 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 v_DerPreprocessor_21) .cse2 v_DerPreprocessor_22) .cse3 v_DerPreprocessor_23) .cse4 v_DerPreprocessor_24)) c_ULTIMATE.start_create_data_~data~0.base) .cse5) (_ bv8 32) .cse6) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 (store (store (store (store (select |c_#memory_$Pointer$.base| .cse0) .cse1 v_DerPreprocessor_25) .cse2 v_DerPreprocessor_26) .cse3 v_DerPreprocessor_27) .cse4 v_DerPreprocessor_28)) c_ULTIMATE.start_create_data_~data~0.base) .cse5)))))) (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32))) (let ((.cse8 (bvmul c_ULTIMATE.start_create_data_~counter~0 (_ bv4 32)))) (let ((.cse7 (let ((.cse10 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (select (select (let ((.cse9 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse10))) (store |c_#memory_$Pointer$.offset| .cse9 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse9) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse8) v_DerPreprocessor_21) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse8) v_DerPreprocessor_22) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse8) v_DerPreprocessor_23) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse8) v_DerPreprocessor_24))) c_ULTIMATE.start_create_data_~data~0.base) .cse10)))) (bvule (bvadd .cse7 (_ bv4 32) .cse8) (bvadd .cse7 (_ bv8 32) .cse8)))))) is different from false [2021-11-03 05:23:02,800 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 49