./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:38:13,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:38:13,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:38:13,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:38:13,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:38:13,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:38:13,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:38:13,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:38:13,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:38:13,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:38:13,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:38:13,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:38:13,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:38:13,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:38:13,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:38:13,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:38:13,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:38:13,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:38:13,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:38:13,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:38:13,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:38:13,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:38:13,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:38:13,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:38:13,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:38:13,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:38:13,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:38:13,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:38:13,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:38:13,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:38:13,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:38:13,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:38:13,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:38:13,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:38:13,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:38:13,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:38:13,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:38:13,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:38:13,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:38:13,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:38:13,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:38:13,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 19:38:13,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:38:13,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:38:13,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:38:13,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:38:13,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:38:13,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:38:13,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:38:13,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:38:13,773 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:38:13,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:38:13,774 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:38:13,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:38:13,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:38:13,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:38:13,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:38:13,775 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:38:13,775 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:38:13,775 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:38:13,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:38:13,776 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:38:13,776 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:38:13,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:38:13,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:38:13,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:38:13,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:38:13,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:38:13,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:38:13,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:38:13,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:38:13,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:38:13,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 [2022-11-18 19:38:14,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:38:14,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:38:14,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:38:14,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:38:14,068 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:38:14,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2022-11-18 19:38:14,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/04b457aa6/8930f643e6d04b9c8c244563ddbaacd1/FLAG02707aed2 [2022-11-18 19:38:14,810 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:38:14,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2022-11-18 19:38:14,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/04b457aa6/8930f643e6d04b9c8c244563ddbaacd1/FLAG02707aed2 [2022-11-18 19:38:15,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/04b457aa6/8930f643e6d04b9c8c244563ddbaacd1 [2022-11-18 19:38:15,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:38:15,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:38:15,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:38:15,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:38:15,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:38:15,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:15" (1/1) ... [2022-11-18 19:38:15,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d3c886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:15, skipping insertion in model container [2022-11-18 19:38:15,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:15" (1/1) ... [2022-11-18 19:38:15,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:38:15,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:38:15,672 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2022-11-18 19:38:15,872 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2022-11-18 19:38:15,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:38:15,906 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-18 19:38:15,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22070a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:15, skipping insertion in model container [2022-11-18 19:38:15,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:38:15,910 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-18 19:38:15,913 INFO L158 Benchmark]: Toolchain (without parser) took 856.87ms. Allocated memory is still 98.6MB. Free memory was 62.9MB in the beginning and 62.7MB in the end (delta: 162.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:38:15,916 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 71.9MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:38:15,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 851.05ms. Allocated memory is still 98.6MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: -34.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:38:15,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 71.9MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 851.05ms. Allocated memory is still 98.6MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: -34.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:38:17,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:38:17,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:38:17,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:38:17,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:38:18,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:38:18,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:38:18,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:38:18,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:38:18,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:38:18,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:38:18,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:38:18,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:38:18,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:38:18,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:38:18,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:38:18,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:38:18,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:38:18,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:38:18,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:38:18,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:38:18,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:38:18,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:38:18,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:38:18,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:38:18,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:38:18,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:38:18,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:38:18,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:38:18,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:38:18,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:38:18,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:38:18,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:38:18,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:38:18,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:38:18,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:38:18,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:38:18,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:38:18,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:38:18,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:38:18,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:38:18,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 19:38:18,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:38:18,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:38:18,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:38:18,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:38:18,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:38:18,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:38:18,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:38:18,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:38:18,122 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:38:18,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:38:18,123 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:38:18,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:38:18,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:38:18,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:38:18,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:38:18,124 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:38:18,124 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:38:18,125 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:38:18,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:38:18,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:38:18,125 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:38:18,125 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:38:18,126 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:38:18,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:38:18,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:38:18,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:38:18,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:38:18,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:38:18,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:38:18,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:38:18,127 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:38:18,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:38:18,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:38:18,128 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_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 [2022-11-18 19:38:18,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:38:18,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:38:18,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:38:18,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:38:18,583 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:38:18,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2022-11-18 19:38:18,653 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/896adb7db/0bdc698400f54a77b40f00d1298b4d7d/FLAG5f3549259 [2022-11-18 19:38:19,414 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:38:19,417 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2022-11-18 19:38:19,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/896adb7db/0bdc698400f54a77b40f00d1298b4d7d/FLAG5f3549259 [2022-11-18 19:38:19,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/data/896adb7db/0bdc698400f54a77b40f00d1298b4d7d [2022-11-18 19:38:19,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:38:19,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:38:19,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:38:19,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:38:19,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:38:19,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:19" (1/1) ... [2022-11-18 19:38:19,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f53d2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:19, skipping insertion in model container [2022-11-18 19:38:19,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:38:19" (1/1) ... [2022-11-18 19:38:19,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:38:19,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:38:20,192 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2022-11-18 19:38:20,374 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2022-11-18 19:38:20,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:38:20,393 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 19:38:20,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:38:20,422 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2022-11-18 19:38:20,523 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2022-11-18 19:38:20,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:38:20,542 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:38:20,591 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2022-11-18 19:38:20,653 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2022-11-18 19:38:20,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:38:20,694 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:38:20,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20 WrapperNode [2022-11-18 19:38:20,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:38:20,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:38:20,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:38:20,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:38:20,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:20,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:20,890 INFO L138 Inliner]: procedures = 180, calls = 388, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1406 [2022-11-18 19:38:20,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:38:20,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:38:20,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:38:20,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:38:20,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:20,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:20,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:20,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:20,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:21,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:21,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:21,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:21,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:38:21,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:38:21,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:38:21,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:38:21,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (1/1) ... [2022-11-18 19:38:21,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:38:21,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:21,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:38:21,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:38:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 19:38:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 19:38:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 19:38:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 19:38:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 19:38:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 19:38:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:38:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:38:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:38:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:38:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 19:38:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:38:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:38:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 19:38:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:38:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:38:21,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:38:21,414 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:38:21,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:38:21,420 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-18 19:38:27,945 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:38:27,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:38:27,975 INFO L300 CfgBuilder]: Removed 83 assume(true) statements. [2022-11-18 19:38:27,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:38:27 BoogieIcfgContainer [2022-11-18 19:38:27,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:38:27,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:38:27,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:38:27,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:38:27,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:38:19" (1/3) ... [2022-11-18 19:38:27,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f84f17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:38:27, skipping insertion in model container [2022-11-18 19:38:27,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:38:20" (2/3) ... [2022-11-18 19:38:27,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f84f17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:38:27, skipping insertion in model container [2022-11-18 19:38:27,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:38:27" (3/3) ... [2022-11-18 19:38:27,988 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-1.i [2022-11-18 19:38:28,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:38:28,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 729 error locations. [2022-11-18 19:38:28,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:38:28,114 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7365d8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:38:28,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 729 error locations. [2022-11-18 19:38:28,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 1454 states, 717 states have (on average 2.2384937238493725) internal successors, (1605), 1445 states have internal predecessors, (1605), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:38:28,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:28,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:38:28,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:28,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2022-11-18 19:38:28,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:28,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131293557] [2022-11-18 19:38:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:28,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:28,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:28,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:28,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 19:38:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:28,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:38:28,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:28,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:28,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:28,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131293557] [2022-11-18 19:38:28,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131293557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:28,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:28,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:38:28,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685830877] [2022-11-18 19:38:28,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:28,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:38:28,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:38:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:38:28,453 INFO L87 Difference]: Start difference. First operand has 1454 states, 717 states have (on average 2.2384937238493725) internal successors, (1605), 1445 states have internal predecessors, (1605), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:28,572 INFO L93 Difference]: Finished difference Result 1436 states and 1517 transitions. [2022-11-18 19:38:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:38:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 19:38:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:28,596 INFO L225 Difference]: With dead ends: 1436 [2022-11-18 19:38:28,597 INFO L226 Difference]: Without dead ends: 1434 [2022-11-18 19:38:28,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:38:28,602 INFO L413 NwaCegarLoop]: 1517 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:28,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:38:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-11-18 19:38:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2022-11-18 19:38:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 708 states have (on average 2.1087570621468927) internal successors, (1493), 1425 states have internal predecessors, (1493), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1515 transitions. [2022-11-18 19:38:28,700 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1515 transitions. Word has length 5 [2022-11-18 19:38:28,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:28,701 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 1515 transitions. [2022-11-18 19:38:28,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:28,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1515 transitions. [2022-11-18 19:38:28,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:38:28,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:28,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:38:28,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:28,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:28,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:28,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:28,915 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2022-11-18 19:38:28,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:28,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443723564] [2022-11-18 19:38:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:28,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:28,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:28,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:28,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 19:38:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:29,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:38:29,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:29,156 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:38:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:29,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:29,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:29,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443723564] [2022-11-18 19:38:29,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443723564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:29,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:29,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:38:29,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410078461] [2022-11-18 19:38:29,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:29,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:38:29,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:29,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:38:29,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:29,182 INFO L87 Difference]: Start difference. First operand 1434 states and 1515 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) [2022-11-18 19:38:32,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:32,566 INFO L93 Difference]: Finished difference Result 1690 states and 1814 transitions. [2022-11-18 19:38:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:38:32,567 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 [2022-11-18 19:38:32,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:32,573 INFO L225 Difference]: With dead ends: 1690 [2022-11-18 19:38:32,573 INFO L226 Difference]: Without dead ends: 1690 [2022-11-18 19:38:32,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:32,574 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 1365 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:32,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1217 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-18 19:38:32,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-11-18 19:38:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1419. [2022-11-18 19:38:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 784 states have (on average 1.9604591836734695) internal successors, (1537), 1410 states have internal predecessors, (1537), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1559 transitions. [2022-11-18 19:38:32,646 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1559 transitions. Word has length 5 [2022-11-18 19:38:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:32,648 INFO L495 AbstractCegarLoop]: Abstraction has 1419 states and 1559 transitions. [2022-11-18 19:38:32,648 INFO L496 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) [2022-11-18 19:38:32,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1559 transitions. [2022-11-18 19:38:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:38:32,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:32,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:38:32,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:32,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:32,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:32,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:32,862 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2022-11-18 19:38:32,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:32,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466669069] [2022-11-18 19:38:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:32,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:32,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:32,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:32,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 19:38:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:33,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:38:33,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:33,041 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:38:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:33,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:33,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:33,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466669069] [2022-11-18 19:38:33,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466669069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:33,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:33,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:38:33,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56899708] [2022-11-18 19:38:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:33,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:38:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:38:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:33,067 INFO L87 Difference]: Start difference. First operand 1419 states and 1559 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) [2022-11-18 19:38:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:37,784 INFO L93 Difference]: Finished difference Result 1941 states and 2130 transitions. [2022-11-18 19:38:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:38:37,785 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 [2022-11-18 19:38:37,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:37,792 INFO L225 Difference]: With dead ends: 1941 [2022-11-18 19:38:37,792 INFO L226 Difference]: Without dead ends: 1941 [2022-11-18 19:38:37,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:37,793 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 743 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:37,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1948 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-18 19:38:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2022-11-18 19:38:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1575. [2022-11-18 19:38:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1575 states, 950 states have (on average 1.94) internal successors, (1843), 1566 states have internal predecessors, (1843), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:37,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 1865 transitions. [2022-11-18 19:38:37,833 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 1865 transitions. Word has length 5 [2022-11-18 19:38:37,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:37,833 INFO L495 AbstractCegarLoop]: Abstraction has 1575 states and 1865 transitions. [2022-11-18 19:38:37,833 INFO L496 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) [2022-11-18 19:38:37,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 1865 transitions. [2022-11-18 19:38:37,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:38:37,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:37,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:38:37,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:38,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:38,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:38,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1157590079, now seen corresponding path program 1 times [2022-11-18 19:38:38,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:38,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397830147] [2022-11-18 19:38:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:38,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:38,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:38,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 19:38:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:38,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:38:38,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:38,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:38,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:38,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397830147] [2022-11-18 19:38:38,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397830147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:38,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:38,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131533735] [2022-11-18 19:38:38,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:38,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:38:38,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:38,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:38:38,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:38,217 INFO L87 Difference]: Start difference. First operand 1575 states and 1865 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-18 19:38:38,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:38,395 INFO L93 Difference]: Finished difference Result 3133 states and 3713 transitions. [2022-11-18 19:38:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:38:38,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 19:38:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:38,410 INFO L225 Difference]: With dead ends: 3133 [2022-11-18 19:38:38,411 INFO L226 Difference]: Without dead ends: 3133 [2022-11-18 19:38:38,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:38,414 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1373 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:38,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 2877 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2022-11-18 19:38:38,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 1577. [2022-11-18 19:38:38,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 952 states have (on average 1.9380252100840336) internal successors, (1845), 1568 states have internal predecessors, (1845), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 1867 transitions. [2022-11-18 19:38:38,479 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 1867 transitions. Word has length 6 [2022-11-18 19:38:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:38,480 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 1867 transitions. [2022-11-18 19:38:38,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-18 19:38:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 1867 transitions. [2022-11-18 19:38:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:38:38,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:38,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:38,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:38,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:38,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:38,694 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2022-11-18 19:38:38,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:38,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182955299] [2022-11-18 19:38:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:38,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:38,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:38,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:38,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 19:38:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:38,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:38:38,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:38,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:38,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:38,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:38,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182955299] [2022-11-18 19:38:38,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182955299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:38,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:38,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115245049] [2022-11-18 19:38:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:38:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:38,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:38:38,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:38,914 INFO L87 Difference]: Start difference. First operand 1577 states and 1867 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:38,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:38,963 INFO L93 Difference]: Finished difference Result 1541 states and 1830 transitions. [2022-11-18 19:38:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:38:38,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 19:38:38,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:38,969 INFO L225 Difference]: With dead ends: 1541 [2022-11-18 19:38:38,969 INFO L226 Difference]: Without dead ends: 1541 [2022-11-18 19:38:38,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:38,970 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 1336 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:38,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 1394 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:38:38,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-11-18 19:38:38,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1535. [2022-11-18 19:38:38,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 934 states have (on average 1.9293361884368307) internal successors, (1802), 1526 states have internal predecessors, (1802), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1824 transitions. [2022-11-18 19:38:39,005 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1824 transitions. Word has length 11 [2022-11-18 19:38:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:39,005 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 1824 transitions. [2022-11-18 19:38:39,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1824 transitions. [2022-11-18 19:38:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:38:39,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:39,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:39,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:39,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:39,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:39,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2022-11-18 19:38:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:39,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028994022] [2022-11-18 19:38:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:39,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:39,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:39,221 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:39,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 19:38:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:38:39,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:39,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:39,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:39,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028994022] [2022-11-18 19:38:39,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028994022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:39,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:39,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:38:39,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494234189] [2022-11-18 19:38:39,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:39,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:38:39,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:39,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:38:39,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:39,425 INFO L87 Difference]: Start difference. First operand 1535 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:39,525 INFO L93 Difference]: Finished difference Result 1520 states and 1802 transitions. [2022-11-18 19:38:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:38:39,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:38:39,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:39,530 INFO L225 Difference]: With dead ends: 1520 [2022-11-18 19:38:39,531 INFO L226 Difference]: Without dead ends: 1520 [2022-11-18 19:38:39,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:39,532 INFO L413 NwaCegarLoop]: 1321 mSDtfsCounter, 1317 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:39,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 2663 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:39,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-11-18 19:38:39,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1513. [2022-11-18 19:38:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 926 states have (on average 1.9146868250539957) internal successors, (1773), 1504 states have internal predecessors, (1773), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:39,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1795 transitions. [2022-11-18 19:38:39,562 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1795 transitions. Word has length 13 [2022-11-18 19:38:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:39,563 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1795 transitions. [2022-11-18 19:38:39,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1795 transitions. [2022-11-18 19:38:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 19:38:39,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:39,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:39,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:39,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:39,777 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:39,777 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2022-11-18 19:38:39,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:39,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555797764] [2022-11-18 19:38:39,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:39,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:39,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:39,780 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:39,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 19:38:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:39,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:38:39,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:39,989 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:38:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:40,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:40,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:40,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555797764] [2022-11-18 19:38:40,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555797764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:40,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:40,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:40,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060850805] [2022-11-18 19:38:40,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:40,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:38:40,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:40,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:38:40,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:40,085 INFO L87 Difference]: Start difference. First operand 1513 states and 1795 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:44,989 INFO L93 Difference]: Finished difference Result 2374 states and 2683 transitions. [2022-11-18 19:38:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:38:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-18 19:38:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:44,998 INFO L225 Difference]: With dead ends: 2374 [2022-11-18 19:38:44,998 INFO L226 Difference]: Without dead ends: 2374 [2022-11-18 19:38:44,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:44,999 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 3005 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:45,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 1546 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-18 19:38:45,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-11-18 19:38:45,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1509. [2022-11-18 19:38:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 926 states have (on average 1.9103671706263499) internal successors, (1769), 1500 states have internal predecessors, (1769), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1791 transitions. [2022-11-18 19:38:45,032 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1791 transitions. Word has length 27 [2022-11-18 19:38:45,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:45,033 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1791 transitions. [2022-11-18 19:38:45,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:45,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1791 transitions. [2022-11-18 19:38:45,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 19:38:45,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:45,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:45,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:45,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:45,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:45,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2022-11-18 19:38:45,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:45,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791841824] [2022-11-18 19:38:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:45,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:45,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:45,248 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:45,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 19:38:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:45,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:38:45,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:45,449 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:38:45,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:45,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:45,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:45,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791841824] [2022-11-18 19:38:45,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791841824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:45,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:45,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:45,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152704337] [2022-11-18 19:38:45,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:45,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:38:45,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:45,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:38:45,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:45,626 INFO L87 Difference]: Start difference. First operand 1509 states and 1791 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:51,271 INFO L93 Difference]: Finished difference Result 1878 states and 2059 transitions. [2022-11-18 19:38:51,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:38:51,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-18 19:38:51,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:51,277 INFO L225 Difference]: With dead ends: 1878 [2022-11-18 19:38:51,277 INFO L226 Difference]: Without dead ends: 1878 [2022-11-18 19:38:51,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:51,278 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 1293 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:51,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 2260 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-18 19:38:51,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-11-18 19:38:51,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1505. [2022-11-18 19:38:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 926 states have (on average 1.906047516198704) internal successors, (1765), 1496 states have internal predecessors, (1765), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1787 transitions. [2022-11-18 19:38:51,323 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1787 transitions. Word has length 27 [2022-11-18 19:38:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:51,324 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 1787 transitions. [2022-11-18 19:38:51,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:51,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1787 transitions. [2022-11-18 19:38:51,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 19:38:51,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:51,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:51,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:51,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:51,541 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2022-11-18 19:38:51,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:51,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157190215] [2022-11-18 19:38:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:51,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:51,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:51,544 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:51,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 19:38:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:51,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:38:51,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:51,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:51,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:51,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157190215] [2022-11-18 19:38:51,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157190215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:51,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:51,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:38:51,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155290331] [2022-11-18 19:38:51,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:51,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:38:51,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:38:51,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:51,849 INFO L87 Difference]: Start difference. First operand 1505 states and 1787 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:51,926 INFO L93 Difference]: Finished difference Result 1505 states and 1783 transitions. [2022-11-18 19:38:51,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:38:51,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-11-18 19:38:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:51,931 INFO L225 Difference]: With dead ends: 1505 [2022-11-18 19:38:51,932 INFO L226 Difference]: Without dead ends: 1505 [2022-11-18 19:38:51,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:51,935 INFO L413 NwaCegarLoop]: 1315 mSDtfsCounter, 1286 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:51,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 2641 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:38:51,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2022-11-18 19:38:51,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1499. [2022-11-18 19:38:51,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 920 states have (on average 1.9076086956521738) internal successors, (1755), 1490 states have internal predecessors, (1755), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1777 transitions. [2022-11-18 19:38:51,970 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1777 transitions. Word has length 42 [2022-11-18 19:38:51,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:51,973 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 1777 transitions. [2022-11-18 19:38:51,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1777 transitions. [2022-11-18 19:38:51,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 19:38:51,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:51,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:51,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:52,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:52,193 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:52,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2022-11-18 19:38:52,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:52,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015777419] [2022-11-18 19:38:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:52,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:52,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:52,195 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:52,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 19:38:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:52,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:38:52,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:52,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:52,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:52,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015777419] [2022-11-18 19:38:52,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015777419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:52,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:52,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:52,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716274544] [2022-11-18 19:38:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:52,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:38:52,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:52,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:38:52,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:52,727 INFO L87 Difference]: Start difference. First operand 1499 states and 1777 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:52,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:52,821 INFO L93 Difference]: Finished difference Result 1545 states and 1823 transitions. [2022-11-18 19:38:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:38:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-18 19:38:52,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:52,827 INFO L225 Difference]: With dead ends: 1545 [2022-11-18 19:38:52,827 INFO L226 Difference]: Without dead ends: 1545 [2022-11-18 19:38:52,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:38:52,828 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 67 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:52,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2551 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2022-11-18 19:38:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1545. [2022-11-18 19:38:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 966 states have (on average 1.8643892339544514) internal successors, (1801), 1536 states have internal predecessors, (1801), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1823 transitions. [2022-11-18 19:38:52,851 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1823 transitions. Word has length 50 [2022-11-18 19:38:52,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:52,852 INFO L495 AbstractCegarLoop]: Abstraction has 1545 states and 1823 transitions. [2022-11-18 19:38:52,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1823 transitions. [2022-11-18 19:38:52,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-18 19:38:52,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:52,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:52,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:53,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:53,067 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:53,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:53,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2022-11-18 19:38:53,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:53,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451569100] [2022-11-18 19:38:53,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:53,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:53,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:53,069 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:53,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 19:38:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:53,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:38:53,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:53,470 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:38:53,479 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:38:54,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:38:54,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-18 19:38:54,023 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:38:54,024 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 13 [2022-11-18 19:38:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:54,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:54,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:54,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451569100] [2022-11-18 19:38:54,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451569100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:54,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:54,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:38:54,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059138052] [2022-11-18 19:38:54,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:54,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:38:54,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:38:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:54,054 INFO L87 Difference]: Start difference. First operand 1545 states and 1823 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:58,370 INFO L93 Difference]: Finished difference Result 1732 states and 1994 transitions. [2022-11-18 19:38:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:38:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-11-18 19:38:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:58,378 INFO L225 Difference]: With dead ends: 1732 [2022-11-18 19:38:58,378 INFO L226 Difference]: Without dead ends: 1732 [2022-11-18 19:38:58,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:38:58,382 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1572 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:58,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 613 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 19:38:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2022-11-18 19:38:58,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1295. [2022-11-18 19:38:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 800 states have (on average 1.75) internal successors, (1400), 1286 states have internal predecessors, (1400), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:38:58,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1422 transitions. [2022-11-18 19:38:58,409 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1422 transitions. Word has length 53 [2022-11-18 19:38:58,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:58,409 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 1422 transitions. [2022-11-18 19:38:58,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:58,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1422 transitions. [2022-11-18 19:38:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-18 19:38:58,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:58,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:58,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:58,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:58,627 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:38:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2022-11-18 19:38:58,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:38:58,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348359809] [2022-11-18 19:38:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:58,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:38:58,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:38:58,629 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:38:58,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 19:38:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:58,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:38:58,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:58,974 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:38:59,000 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:38:59,035 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 11 [2022-11-18 19:38:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:59,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:59,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:38:59,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348359809] [2022-11-18 19:38:59,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348359809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:59,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:38:59,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:38:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339405640] [2022-11-18 19:38:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:59,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:38:59,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:38:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:38:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:38:59,055 INFO L87 Difference]: Start difference. First operand 1295 states and 1422 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:03,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:03,165 INFO L93 Difference]: Finished difference Result 1294 states and 1421 transitions. [2022-11-18 19:39:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:39:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-18 19:39:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:03,169 INFO L225 Difference]: With dead ends: 1294 [2022-11-18 19:39:03,169 INFO L226 Difference]: Without dead ends: 1294 [2022-11-18 19:39:03,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:39:03,170 INFO L413 NwaCegarLoop]: 1235 mSDtfsCounter, 4 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:03,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3163 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-18 19:39:03,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-11-18 19:39:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1294. [2022-11-18 19:39:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 800 states have (on average 1.74875) internal successors, (1399), 1285 states have internal predecessors, (1399), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:39:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1421 transitions. [2022-11-18 19:39:03,189 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1421 transitions. Word has length 58 [2022-11-18 19:39:03,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:03,189 INFO L495 AbstractCegarLoop]: Abstraction has 1294 states and 1421 transitions. [2022-11-18 19:39:03,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:03,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1421 transitions. [2022-11-18 19:39:03,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-18 19:39:03,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:03,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:03,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:03,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:03,404 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2022-11-18 19:39:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:03,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584875376] [2022-11-18 19:39:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:03,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:03,408 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:03,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 19:39:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:03,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:39:03,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:03,770 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:39:03,804 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:39:03,816 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:39:03,866 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 9 [2022-11-18 19:39:03,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:39:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:03,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:03,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:03,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584875376] [2022-11-18 19:39:03,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584875376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:03,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:03,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:39:03,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488383530] [2022-11-18 19:39:03,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:03,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:39:03,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:03,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:39:03,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:39:03,896 INFO L87 Difference]: Start difference. First operand 1294 states and 1421 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:09,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:09,183 INFO L93 Difference]: Finished difference Result 1293 states and 1420 transitions. [2022-11-18 19:39:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:39:09,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-11-18 19:39:09,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:09,188 INFO L225 Difference]: With dead ends: 1293 [2022-11-18 19:39:09,188 INFO L226 Difference]: Without dead ends: 1293 [2022-11-18 19:39:09,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:39:09,189 INFO L413 NwaCegarLoop]: 1235 mSDtfsCounter, 2 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:09,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3193 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-18 19:39:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2022-11-18 19:39:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1293. [2022-11-18 19:39:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 799 states have (on average 1.7496871088861077) internal successors, (1398), 1284 states have internal predecessors, (1398), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:39:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1420 transitions. [2022-11-18 19:39:09,206 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1420 transitions. Word has length 58 [2022-11-18 19:39:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:09,207 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1420 transitions. [2022-11-18 19:39:09,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:39:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1420 transitions. [2022-11-18 19:39:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-18 19:39:09,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:09,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:09,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:09,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:09,422 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:09,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1451288354, now seen corresponding path program 1 times [2022-11-18 19:39:09,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:09,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207201943] [2022-11-18 19:39:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:09,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:09,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:09,425 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:09,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 19:39:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:09,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:39:09,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:09,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:09,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:09,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207201943] [2022-11-18 19:39:09,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207201943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:09,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:09,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:39:09,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840664612] [2022-11-18 19:39:09,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:09,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:39:09,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:09,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:39:09,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:39:09,813 INFO L87 Difference]: Start difference. First operand 1293 states and 1420 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:39:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:09,888 INFO L93 Difference]: Finished difference Result 1296 states and 1425 transitions. [2022-11-18 19:39:09,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:39:09,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-11-18 19:39:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:09,898 INFO L225 Difference]: With dead ends: 1296 [2022-11-18 19:39:09,906 INFO L226 Difference]: Without dead ends: 1296 [2022-11-18 19:39:09,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:39:09,907 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 2 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:09,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3694 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:39:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-11-18 19:39:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2022-11-18 19:39:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 801 states have (on average 1.749063670411985) internal successors, (1401), 1287 states have internal predecessors, (1401), 11 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-18 19:39:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1425 transitions. [2022-11-18 19:39:09,933 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1425 transitions. Word has length 66 [2022-11-18 19:39:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:09,934 INFO L495 AbstractCegarLoop]: Abstraction has 1296 states and 1425 transitions. [2022-11-18 19:39:09,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:39:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1425 transitions. [2022-11-18 19:39:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-18 19:39:09,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:09,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:09,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:10,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:10,155 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:10,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1555032163, now seen corresponding path program 1 times [2022-11-18 19:39:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:10,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377405831] [2022-11-18 19:39:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:10,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:10,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:10,158 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:10,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-18 19:39:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:10,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:39:10,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:10,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:10,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:10,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377405831] [2022-11-18 19:39:10,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377405831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:10,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:39:10,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 19:39:10,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412528165] [2022-11-18 19:39:10,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:10,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:39:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:10,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:39:10,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:39:10,685 INFO L87 Difference]: Start difference. First operand 1296 states and 1425 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:10,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:10,999 INFO L93 Difference]: Finished difference Result 1308 states and 1443 transitions. [2022-11-18 19:39:11,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:39:11,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2022-11-18 19:39:11,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:11,004 INFO L225 Difference]: With dead ends: 1308 [2022-11-18 19:39:11,004 INFO L226 Difference]: Without dead ends: 1308 [2022-11-18 19:39:11,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:39:11,007 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 14 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:11,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:39:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2022-11-18 19:39:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1306. [2022-11-18 19:39:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 810 states have (on average 1.7481481481481482) internal successors, (1416), 1296 states have internal predecessors, (1416), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-18 19:39:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1440 transitions. [2022-11-18 19:39:11,028 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1440 transitions. Word has length 67 [2022-11-18 19:39:11,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:11,029 INFO L495 AbstractCegarLoop]: Abstraction has 1306 states and 1440 transitions. [2022-11-18 19:39:11,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1440 transitions. [2022-11-18 19:39:11,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-18 19:39:11,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:11,030 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:11,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:11,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:11,254 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:11,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:11,255 INFO L85 PathProgramCache]: Analyzing trace with hash 354963614, now seen corresponding path program 2 times [2022-11-18 19:39:11,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:11,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902917043] [2022-11-18 19:39:11,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:39:11,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:11,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:11,257 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:11,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 19:39:11,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:39:11,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:11,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 19:39:11,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:11,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:12,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:12,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902917043] [2022-11-18 19:39:12,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902917043] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:12,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:39:12,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-18 19:39:12,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408516897] [2022-11-18 19:39:12,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:12,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 19:39:12,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:12,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 19:39:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:39:12,122 INFO L87 Difference]: Start difference. First operand 1306 states and 1440 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:13,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:13,028 INFO L93 Difference]: Finished difference Result 1327 states and 1472 transitions. [2022-11-18 19:39:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 19:39:13,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2022-11-18 19:39:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:13,032 INFO L225 Difference]: With dead ends: 1327 [2022-11-18 19:39:13,032 INFO L226 Difference]: Without dead ends: 1323 [2022-11-18 19:39:13,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:39:13,034 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 66 mSDsluCounter, 6163 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 7400 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:13,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 7400 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:39:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-11-18 19:39:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1315. [2022-11-18 19:39:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 819 states have (on average 1.7435897435897436) internal successors, (1428), 1305 states have internal predecessors, (1428), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-18 19:39:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1452 transitions. [2022-11-18 19:39:13,056 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1452 transitions. Word has length 70 [2022-11-18 19:39:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:13,056 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 1452 transitions. [2022-11-18 19:39:13,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1452 transitions. [2022-11-18 19:39:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-18 19:39:13,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:13,058 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:13,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:13,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:13,273 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:13,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:13,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1982439486, now seen corresponding path program 3 times [2022-11-18 19:39:13,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:13,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741778796] [2022-11-18 19:39:13,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:39:13,275 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:13,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:13,276 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:13,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 19:39:14,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-18 19:39:14,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:14,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 19:39:14,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:14,244 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:14,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:15,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:15,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741778796] [2022-11-18 19:39:15,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741778796] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:15,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:39:15,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-18 19:39:15,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739328676] [2022-11-18 19:39:15,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:15,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:39:15,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:15,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:39:15,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:39:15,321 INFO L87 Difference]: Start difference. First operand 1315 states and 1452 transitions. Second operand has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:20,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:20,081 INFO L93 Difference]: Finished difference Result 1357 states and 1528 transitions. [2022-11-18 19:39:20,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 19:39:20,082 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2022-11-18 19:39:20,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:20,086 INFO L225 Difference]: With dead ends: 1357 [2022-11-18 19:39:20,086 INFO L226 Difference]: Without dead ends: 1351 [2022-11-18 19:39:20,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 19:39:20,088 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 166 mSDsluCounter, 14819 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 16060 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:20,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 16060 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 19:39:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-11-18 19:39:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1333. [2022-11-18 19:39:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 837 states have (on average 1.7335722819593786) internal successors, (1451), 1323 states have internal predecessors, (1451), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-18 19:39:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1475 transitions. [2022-11-18 19:39:20,109 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1475 transitions. Word has length 76 [2022-11-18 19:39:20,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:20,109 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 1475 transitions. [2022-11-18 19:39:20,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:20,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1475 transitions. [2022-11-18 19:39:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-18 19:39:20,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:20,111 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:20,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:20,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:20,326 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:20,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:20,327 INFO L85 PathProgramCache]: Analyzing trace with hash -687892610, now seen corresponding path program 4 times [2022-11-18 19:39:20,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:20,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641284296] [2022-11-18 19:39:20,327 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:39:20,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:20,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:20,328 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:20,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-18 19:39:20,798 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:39:20,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:20,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 19:39:20,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:21,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:23,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:23,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641284296] [2022-11-18 19:39:23,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641284296] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:23,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:39:23,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-11-18 19:39:23,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096602001] [2022-11-18 19:39:23,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:23,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-18 19:39:23,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:23,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-18 19:39:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 19:39:23,708 INFO L87 Difference]: Start difference. First operand 1333 states and 1475 transitions. Second operand has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:37,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:37,630 INFO L93 Difference]: Finished difference Result 1413 states and 1608 transitions. [2022-11-18 19:39:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-11-18 19:39:37,631 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2022-11-18 19:39:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:37,635 INFO L225 Difference]: With dead ends: 1413 [2022-11-18 19:39:37,635 INFO L226 Difference]: Without dead ends: 1409 [2022-11-18 19:39:37,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1383 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2022-11-18 19:39:37,639 INFO L413 NwaCegarLoop]: 1254 mSDtfsCounter, 448 mSDsluCounter, 31184 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 32438 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:37,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 32438 Invalid, 3562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [447 Valid, 3115 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-18 19:39:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2022-11-18 19:39:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1367. [2022-11-18 19:39:37,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 871 states have (on average 1.7187141216991964) internal successors, (1497), 1357 states have internal predecessors, (1497), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-18 19:39:37,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1521 transitions. [2022-11-18 19:39:37,668 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1521 transitions. Word has length 88 [2022-11-18 19:39:37,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:37,669 INFO L495 AbstractCegarLoop]: Abstraction has 1367 states and 1521 transitions. [2022-11-18 19:39:37,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.22) internal successors, (111), 50 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:39:37,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1521 transitions. [2022-11-18 19:39:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 19:39:37,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:37,670 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:37,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:37,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:37,886 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:39:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1393730018, now seen corresponding path program 5 times [2022-11-18 19:39:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:37,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399820734] [2022-11-18 19:39:37,888 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:39:37,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:39:37,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:37,889 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:39:37,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-18 19:39:39,419 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-11-18 19:39:39,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:39,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-18 19:39:39,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:39,468 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:39:39,615 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:39:39,616 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:39:39,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:39:39,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-18 19:39:41,123 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_9 (_ BitVec 32))) (and (= (bvadd (select |c_#valid| v_arrayElimCell_9) (_ bv1 1)) (_ bv0 1)) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)) (not (= v_arrayElimCell_9 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)))) (exists ((v_ArrVal_1631 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1631)))) is different from true [2022-11-18 19:39:41,650 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:39:41,651 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 36 treesize of output 37 [2022-11-18 19:39:41,707 INFO L350 Elim1Store]: Elim1 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 15 [2022-11-18 19:39:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 903 trivial. 44 not checked. [2022-11-18 19:39:41,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:42,127 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1689 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_1689) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-18 19:39:42,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:42,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399820734] [2022-11-18 19:39:42,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399820734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [833522014] [2022-11-18 19:39:42,130 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:39:42,130 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:39:42,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:39:42,133 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:39:42,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-18 19:40:53,830 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-11-18 19:40:53,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:54,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-18 19:40:54,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:54,036 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:40:54,192 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-18 19:40:54,192 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 19:40:54,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:40:54,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-18 19:40:55,973 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:40:55,973 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 36 treesize of output 37 [2022-11-18 19:40:56,028 INFO L350 Elim1Store]: Elim1 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 15 [2022-11-18 19:40:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-18 19:40:56,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:58,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [833522014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:40:58,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:40:58,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2022-11-18 19:40:58,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833096820] [2022-11-18 19:40:58,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:58,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:58,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:40:58,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=95, Unknown=12, NotChecked=42, Total=182 [2022-11-18 19:40:58,387 INFO L87 Difference]: Start difference. First operand 1367 states and 1521 transitions. Second operand has 10 states, 8 states have (on average 8.5) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:40:58,729 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1600 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1600) |c_#memory_$Pointer$.base|)) (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1| (_ BitVec 32)) (v_arrayElimCell_9 (_ BitVec 32))) (and (= (bvadd (select |c_#valid| v_arrayElimCell_9) (_ bv1 1)) (_ bv0 1)) (= (bvadd (select |c_#valid| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|) (_ bv1 1)) (_ bv0 1)) (not (= v_arrayElimCell_9 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_1|)))) (exists ((v_ArrVal_1631 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_1631)))) is different from true [2022-11-18 19:41:03,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:03,837 INFO L93 Difference]: Finished difference Result 1690 states and 1831 transitions. [2022-11-18 19:41:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:41:03,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-11-18 19:41:03,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:03,842 INFO L225 Difference]: With dead ends: 1690 [2022-11-18 19:41:03,842 INFO L226 Difference]: Without dead ends: 1686 [2022-11-18 19:41:03,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 125 SyntacticMatches, 89 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=54, Invalid=152, Unknown=16, NotChecked=84, Total=306 [2022-11-18 19:41:03,843 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 1138 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 5680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3719 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 3397 Invalid, 5680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1950 Invalid, 0 Unknown, 3719 Unchecked, 5.2s Time] [2022-11-18 19:41:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-11-18 19:41:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1415. [2022-11-18 19:41:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 919 states have (on average 1.6811751904243744) internal successors, (1545), 1404 states have internal predecessors, (1545), 11 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-18 19:41:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1569 transitions. [2022-11-18 19:41:03,870 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1569 transitions. Word has length 110 [2022-11-18 19:41:03,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:03,870 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 1569 transitions. [2022-11-18 19:41:03,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.5) internal successors, (68), 10 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:41:03,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1569 transitions. [2022-11-18 19:41:03,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-18 19:41:03,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:03,872 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:41:03,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:04,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:41:04,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:41:04,287 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-11-18 19:41:04,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:04,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1393730017, now seen corresponding path program 1 times [2022-11-18 19:41:04,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:41:04,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20138491] [2022-11-18 19:41:04,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:04,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:41:04,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:41:04,289 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:41:04,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-18 19:41:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:05,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-18 19:41:05,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:05,228 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:41:05,354 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:41:05,370 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:41:05,370 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 13 [2022-11-18 19:41:05,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:41:05,412 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:41:05,536 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 10 [2022-11-18 19:41:05,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:41:05,656 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2501 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2501))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2500 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2500)))) is different from true [2022-11-18 19:41:05,670 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2503 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2503))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2502 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2502)))) is different from true [2022-11-18 19:41:05,683 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2505 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2505) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2504 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2504) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:41:05,698 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2507 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2507))) (exists ((v_ArrVal_2506 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2506) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:41:05,714 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2509 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2509) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2508 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2508) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:41:05,730 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2511 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2511))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2510 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2510)))) is different from true [2022-11-18 19:41:05,746 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2513 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2513))) (exists ((v_ArrVal_2512 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2512)))) is different from true [2022-11-18 19:41:05,761 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2514 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2514))) (exists ((v_ArrVal_2515 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2515))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:05,777 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2516 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2516) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2517 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2517))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:05,792 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2518 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2518))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2519 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2519)))) is different from true [2022-11-18 19:41:05,807 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2520 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2520))) (exists ((v_ArrVal_2521 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2521)))) is different from true [2022-11-18 19:41:05,823 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2522 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2522))) (exists ((v_ArrVal_2523 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2523) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:05,839 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2525 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2525))) (exists ((v_ArrVal_2524 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2524))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:05,854 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2527 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2527))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2526 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2526) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:41:05,870 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2528 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2528) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2529 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2529) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:41:05,885 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2530 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2530) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2531 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2531)))) is different from true [2022-11-18 19:41:05,900 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2532 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2532) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2533 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2533) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,028 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2540 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2540) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2541 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2541) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:41:06,043 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2543 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2543))) (exists ((v_ArrVal_2542 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2542))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,059 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2545 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2545) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2544 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2544) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:41:06,076 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2546 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2546) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2547 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2547))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,131 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2551 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2551))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2550 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2550) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:41:06,147 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2553 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2553))) (exists ((v_ArrVal_2552 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2552)))) is different from true [2022-11-18 19:41:06,162 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2554 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2554) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2555 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2555))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,177 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2557 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2557))) (exists ((v_ArrVal_2556 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2556) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:41:06,192 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2559 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2559))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2558 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2558)))) is different from true [2022-11-18 19:41:06,207 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2561 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2561) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2560 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2560) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,222 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2562 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2562) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2563 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2563)))) is different from true [2022-11-18 19:41:06,261 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2565 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2565))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2564 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2564)))) is different from true [2022-11-18 19:41:06,276 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2566 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2566))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2567 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2567)))) is different from true [2022-11-18 19:41:06,291 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2569 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2569))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2568 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2568)))) is different from true [2022-11-18 19:41:06,306 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2570 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2570) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2571 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2571))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,321 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2572 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2572))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2573 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2573)))) is different from true [2022-11-18 19:41:06,337 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2574 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2574))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2575 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2575)))) is different from true [2022-11-18 19:41:06,353 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2577 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2577))) (exists ((v_ArrVal_2576 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2576))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,369 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2578 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2578))) (exists ((v_ArrVal_2579 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2579) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,384 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_2581 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2581))) (exists ((v_ArrVal_2580 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2580)))) is different from true [2022-11-18 19:41:06,404 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2582 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2582) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2583 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2583))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,420 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2584 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2584))) (exists ((v_ArrVal_2585 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2585))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:41:06,481 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:41:06,481 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 45 [2022-11-18 19:41:06,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-18 19:41:06,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-18 19:41:06,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:41:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 975 not checked. [2022-11-18 19:41:06,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:07,712 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2677 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2677) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_ArrVal_2677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2676 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2677) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2676) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2022-11-18 19:41:07,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:41:07,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20138491] [2022-11-18 19:41:07,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20138491] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:41:07,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1275033427] [2022-11-18 19:41:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:07,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 19:41:07,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 19:41:07,721 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 19:41:07,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dec8cba-8175-49d0-bca8-4736f8df12dd/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-18 19:42:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:50,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-18 19:42:50,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:42:50,727 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-18 19:42:50,889 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:42:50,906 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 19:42:50,907 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 13 [2022-11-18 19:42:50,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 19:42:50,945 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 19:42:51,029 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 10 [2022-11-18 19:42:51,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-18 19:42:51,104 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3038 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3038))) (exists ((v_ArrVal_3039 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3039))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,121 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3040 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3040))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3041 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3041) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:42:51,140 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3042 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3042))) (exists ((v_ArrVal_3043 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3043))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,156 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3045 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3045))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3044 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3044)))) is different from true [2022-11-18 19:42:51,173 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3046 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3046))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3047 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3047)))) is different from true [2022-11-18 19:42:51,190 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3048 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3048) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3049 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3049))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,208 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3050 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3050))) (exists ((v_ArrVal_3051 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3051))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,243 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3052 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3052))) (exists ((v_ArrVal_3053 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3053))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,260 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3054 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3054))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3055 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3055)))) is different from true [2022-11-18 19:42:51,276 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3056 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3056) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3057 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3057) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:42:51,297 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3059 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3059))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3058 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3058)))) is different from true [2022-11-18 19:42:51,314 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3061 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3061) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3060 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3060))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,330 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3062 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3062))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3063 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3063)))) is different from true [2022-11-18 19:42:51,347 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3065 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3065) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3064 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3064)))) is different from true [2022-11-18 19:42:51,364 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3066 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3066))) (exists ((v_ArrVal_3067 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3067) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,380 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3069 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3069))) (exists ((v_ArrVal_3068 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3068) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,396 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3070 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3070) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3071 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3071)))) is different from true [2022-11-18 19:42:51,413 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3073 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3073) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3072 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3072) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:42:51,429 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3075 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3075))) (exists ((v_ArrVal_3074 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3074))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,446 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3076 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3076))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3077 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3077) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:42:51,463 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3079 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3079) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3078 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3078))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,480 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3080 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3080) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3081 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3081)))) is different from true [2022-11-18 19:42:51,497 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3082 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3082))) (exists ((v_ArrVal_3083 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3083))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,514 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3084 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3084))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3085 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3085)))) is different from true [2022-11-18 19:42:51,530 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3087 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3087))) (exists ((v_ArrVal_3086 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3086))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,547 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3088 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3088) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3089 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3089)))) is different from true [2022-11-18 19:42:51,562 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3091 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3091))) (exists ((v_ArrVal_3090 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3090) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,579 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3092 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3092))) (exists ((v_ArrVal_3093 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3093))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,635 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3097 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3097) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3096 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3096))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,691 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3100 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3100) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3101 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3101) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:42:51,748 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3104 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3104))) (exists ((v_ArrVal_3105 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3105))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,764 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3107 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3107))) (exists ((v_ArrVal_3106 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3106))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,781 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3109 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3109) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3108 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3108)))) is different from true [2022-11-18 19:42:51,797 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3110 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3110))) (exists ((v_ArrVal_3111 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3111))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,857 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3115 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3115))) (exists ((v_ArrVal_3114 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3114))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,874 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3116 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3116))) (exists ((v_ArrVal_3117 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3117))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,890 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3119 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3119) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3118 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3118) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 19:42:51,907 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3121 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3121) |c_#memory_$Pointer$.base|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3120 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3120) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:42:51,923 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3123 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3123) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3122 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3122))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,939 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3124 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3124) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3125 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3125) |c_#memory_$Pointer$.offset|)) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32)))) is different from true [2022-11-18 19:42:51,999 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 19:42:52,000 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 45 [2022-11-18 19:42:52,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-18 19:42:52,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2022-11-18 19:42:52,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 19:42:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 980 not checked. [2022-11-18 19:42:52,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:42:53,147 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3217 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3216 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3216) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3217) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3216 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3216) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd .cse1 (_ bv20 32))))))) is different from false [2022-11-18 19:42:53,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1275033427] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:42:53,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:42:53,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 48] total 87 [2022-11-18 19:42:53,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020823165] [2022-11-18 19:42:53,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:42:53,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-11-18 19:42:53,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:42:53,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-11-18 19:42:53,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=162, Unknown=87, NotChecked=7938, Total=8372 [2022-11-18 19:42:53,158 INFO L87 Difference]: Start difference. First operand 1415 states and 1569 transitions. Second operand has 88 states, 86 states have (on average 1.7790697674418605) internal successors, (153), 88 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 19:42:53,780 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3097 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3097) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3096 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3096))) (exists ((v_ArrVal_2540 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2540) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_3104 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3104))) (exists ((v_ArrVal_2499 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2499))) (exists ((v_ArrVal_2551 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2551))) (exists ((v_ArrVal_3115 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3115))) (exists ((v_ArrVal_3100 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3100) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3114 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3114))) (exists ((v_ArrVal_2501 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2501))) (exists ((v_ArrVal_3105 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3105))) (exists ((v_ArrVal_2498 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2498))) (exists ((v_ArrVal_3040 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3040))) (exists ((v_arrayElimCell_19 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_19) (_ bv44 32))) (exists ((v_ArrVal_3041 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3041) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3101 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_3101) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2550 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2550) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2500 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2500))) (exists ((v_ArrVal_2541 (Array (_ BitVec 32) (_ BitVec 32)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| v_ArrVal_2541) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 19:43:04,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:04,816 INFO L93 Difference]: Finished difference Result 1688 states and 1828 transitions. [2022-11-18 19:43:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:43:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 86 states have (on average 1.7790697674418605) internal successors, (153), 88 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 110 [2022-11-18 19:43:04,817 INFO L84 Accepts]: Finished accepts. each prefix is rejected. [2022-11-18 19:43:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 86 states have (on average 1.7790697674418605) internal successors, (153), 88 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 110