./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:59:42,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:59:42,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 03:59:42,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:59:42,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:59:42,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:59:42,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:59:42,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:59:42,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:59:42,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:59:42,606 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:59:42,607 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:59:42,607 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:59:42,607 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:59:42,607 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:59:42,607 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:59:42,607 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:59:42,607 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:59:42,608 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:59:42,608 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:59:42,608 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:59:42,608 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:59:42,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:59:42,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:59:42,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:59:42,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:59:42,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:59:42,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:59:42,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:59:42,610 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:59:42,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:59:42,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:59:42,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:59:42,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:59:42,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:42,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:59:42,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:59:42,613 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:59:42,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:59:42,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:59:42,613 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:59:42,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:59:42,614 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2024-11-14 03:59:42,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:59:42,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:59:42,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:59:42,983 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:59:42,983 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:59:42,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i Unable to find full path for "g++" [2024-11-14 03:59:44,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:59:45,328 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:59:45,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2024-11-14 03:59:45,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data/d4388784b/08fb856fecd145a6a98fb923b4e01888/FLAGcf75d9319 [2024-11-14 03:59:45,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data/d4388784b/08fb856fecd145a6a98fb923b4e01888 [2024-11-14 03:59:45,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:59:45,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:59:45,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:45,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:59:45,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:59:45,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:45" (1/1) ... [2024-11-14 03:59:45,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1cc835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:45, skipping insertion in model container [2024-11-14 03:59:45,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:45" (1/1) ... [2024-11-14 03:59:45,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:59:45,883 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:45,935 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:45,944 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:45,949 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:45,956 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,007 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,010 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,013 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,019 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,030 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,031 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,034 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,036 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,037 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,038 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,043 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:46,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:46,067 ERROR L321 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) [2024-11-14 03:59:46,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fa7430c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:46, skipping insertion in model container [2024-11-14 03:59:46,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:46,068 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 03:59:46,074 INFO L158 Benchmark]: Toolchain (without parser) took 701.43ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 68.6MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:59:46,074 INFO L158 Benchmark]: CDTParser took 1.57ms. Allocated memory is still 83.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:59:46,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.00ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 68.6MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:59:46,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57ms. Allocated memory is still 83.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.00ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 68.6MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:59:48,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:59:48,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-14 03:59:48,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:59:48,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:59:48,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:59:48,927 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:59:48,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:59:48,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:59:48,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:59:48,928 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:59:48,928 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:59:48,928 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:59:48,928 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:59:48,929 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:59:48,929 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:59:48,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:59:48,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:59:48,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:59:48,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:59:48,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:59:48,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:59:48,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:59:48,930 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:59:48,930 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:59:48,931 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:59:48,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:59:48,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:59:48,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:59:48,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:59:48,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:59:48,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:59:48,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:59:48,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:59:48,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:59:48,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:59:48,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:59:48,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:59:48,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:48,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:59:48,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:59:48,933 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:59:48,933 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:59:48,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:59:48,933 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:59:48,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2024-11-14 03:59:49,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:59:49,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:59:49,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:59:49,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:59:49,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:59:49,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i Unable to find full path for "g++" [2024-11-14 03:59:51,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:59:51,758 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:59:51,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2024-11-14 03:59:51,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data/dc4908ff8/ac24048ca6f44c25b427f62f17dd068a/FLAG3c90b9ff9 [2024-11-14 03:59:51,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/data/dc4908ff8/ac24048ca6f44c25b427f62f17dd068a [2024-11-14 03:59:51,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:59:51,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:59:51,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:51,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:59:51,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:59:51,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:51" (1/1) ... [2024-11-14 03:59:51,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56255ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:51, skipping insertion in model container [2024-11-14 03:59:51,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:59:51" (1/1) ... [2024-11-14 03:59:51,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:59:52,455 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,518 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,522 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,528 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,584 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,587 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,590 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,598 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,611 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,612 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,616 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,617 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,619 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,620 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,625 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:52,657 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 03:59:52,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:59:52,723 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,766 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,769 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,774 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,786 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,825 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,828 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,833 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,841 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,857 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,865 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,867 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,872 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,873 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,873 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,877 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:59:52,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:52,886 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:59:53,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:59:53,059 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:59:53,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53 WrapperNode [2024-11-14 03:59:53,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:59:53,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:53,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:59:53,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:59:53,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,252 INFO L138 Inliner]: procedures = 179, calls = 387, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1312 [2024-11-14 03:59:53,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:59:53,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:59:53,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:59:53,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:59:53,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:59:53,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:59:53,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:59:53,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:59:53,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (1/1) ... [2024-11-14 03:59:53,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:59:53,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:53,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:59:53,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:59:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:59:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:59:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:59:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:59:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:59:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:59:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:59:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:59:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:59:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:59:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:59:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:59:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:59:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:59:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:59:53,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:59:53,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:59:53,790 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 04:00:00,996 INFO L? ?]: Removed 1543 outVars from TransFormulas that were not future-live. [2024-11-14 04:00:00,997 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:00:01,062 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:00:01,062 INFO L316 CfgBuilder]: Removed 69 assume(true) statements. [2024-11-14 04:00:01,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:00:01 BoogieIcfgContainer [2024-11-14 04:00:01,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:00:01,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:00:01,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:00:01,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:00:01,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:59:51" (1/3) ... [2024-11-14 04:00:01,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58746acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:00:01, skipping insertion in model container [2024-11-14 04:00:01,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:59:53" (2/3) ... [2024-11-14 04:00:01,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58746acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:00:01, skipping insertion in model container [2024-11-14 04:00:01,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:00:01" (3/3) ... [2024-11-14 04:00:01,080 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-2.i [2024-11-14 04:00:01,099 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:00:01,101 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test4-2.i that has 3 procedures, 1450 locations, 1 initial locations, 40 loop locations, and 733 error locations. [2024-11-14 04:00:01,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:00:01,196 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@34c8360a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:00:01,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-11-14 04:00:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 1450 states, 704 states have (on average 2.242897727272727) internal successors, (1579), 1441 states have internal predecessors, (1579), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:00:01,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:01,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:00:01,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:01,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:01,216 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2024-11-14 04:00:01,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:01,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452175684] [2024-11-14 04:00:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:01,228 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 [2024-11-14 04:00:01,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:01,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:01,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:01,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:00:01,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:01,433 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:01,434 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:01,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452175684] [2024-11-14 04:00:01,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452175684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:01,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:01,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:00:01,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718597773] [2024-11-14 04:00:01,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:01,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:00:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:01,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:00:01,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:00:01,476 INFO L87 Difference]: Start difference. First operand has 1450 states, 704 states have (on average 2.242897727272727) internal successors, (1579), 1441 states have internal predecessors, (1579), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:00:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:01,593 INFO L93 Difference]: Finished difference Result 1431 states and 1514 transitions. [2024-11-14 04:00:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:00:01,595 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 [2024-11-14 04:00:01,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:01,624 INFO L225 Difference]: With dead ends: 1431 [2024-11-14 04:00:01,624 INFO L226 Difference]: Without dead ends: 1429 [2024-11-14 04:00:01,626 INFO L431 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 [2024-11-14 04:00:01,630 INFO L432 NwaCegarLoop]: 1514 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, 1514 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 [2024-11-14 04:00:01,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:00:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-14 04:00:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1429. [2024-11-14 04:00:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 694 states have (on average 2.132564841498559) internal successors, (1480), 1420 states have internal predecessors, (1480), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1512 transitions. [2024-11-14 04:00:01,769 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1512 transitions. Word has length 5 [2024-11-14 04:00:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:01,770 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1512 transitions. [2024-11-14 04:00:01,770 INFO L472 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) [2024-11-14 04:00:01,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1512 transitions. [2024-11-14 04:00:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:00:01,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:01,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:00:01,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:01,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:01,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:01,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:01,978 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2024-11-14 04:00:01,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:01,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656550689] [2024-11-14 04:00:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:01,978 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 [2024-11-14 04:00:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:01,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:02,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:00:02,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:02,196 INFO L378 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 [2024-11-14 04:00:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:02,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:02,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:02,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656550689] [2024-11-14 04:00:02,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656550689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:02,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:02,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:00:02,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820035603] [2024-11-14 04:00:02,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:02,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:00:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:02,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:00:02,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:02,264 INFO L87 Difference]: Start difference. First operand 1429 states and 1512 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) [2024-11-14 04:00:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:05,680 INFO L93 Difference]: Finished difference Result 1337 states and 1421 transitions. [2024-11-14 04:00:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:05,681 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 [2024-11-14 04:00:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:05,687 INFO L225 Difference]: With dead ends: 1337 [2024-11-14 04:00:05,687 INFO L226 Difference]: Without dead ends: 1337 [2024-11-14 04:00:05,687 INFO L431 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 [2024-11-14 04:00:05,688 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 1042 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:05,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 922 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-14 04:00:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2024-11-14 04:00:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1335. [2024-11-14 04:00:05,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 694 states have (on average 1.9971181556195965) internal successors, (1386), 1326 states have internal predecessors, (1386), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:05,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1418 transitions. [2024-11-14 04:00:05,732 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1418 transitions. Word has length 5 [2024-11-14 04:00:05,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:05,732 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1418 transitions. [2024-11-14 04:00:05,732 INFO L472 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) [2024-11-14 04:00:05,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1418 transitions. [2024-11-14 04:00:05,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:00:05,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:05,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:00:05,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:05,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:05,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:05,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:05,934 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2024-11-14 04:00:05,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:05,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547850873] [2024-11-14 04:00:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:05,935 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 [2024-11-14 04:00:05,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:05,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:05,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:06,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:00:06,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:06,087 INFO L378 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 [2024-11-14 04:00:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:06,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:06,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:06,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547850873] [2024-11-14 04:00:06,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547850873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:06,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:06,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:00:06,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993649203] [2024-11-14 04:00:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:06,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:00:06,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:06,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:00:06,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:06,123 INFO L87 Difference]: Start difference. First operand 1335 states and 1418 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) [2024-11-14 04:00:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:10,376 INFO L93 Difference]: Finished difference Result 1655 states and 1758 transitions. [2024-11-14 04:00:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:10,376 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 [2024-11-14 04:00:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:10,383 INFO L225 Difference]: With dead ends: 1655 [2024-11-14 04:00:10,383 INFO L226 Difference]: Without dead ends: 1655 [2024-11-14 04:00:10,384 INFO L431 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 [2024-11-14 04:00:10,386 INFO L432 NwaCegarLoop]: 1173 mSDtfsCounter, 522 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:10,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1759 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 04:00:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-14 04:00:10,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1502. [2024-11-14 04:00:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 871 states have (on average 1.9586681974741675) internal successors, (1706), 1493 states have internal predecessors, (1706), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1738 transitions. [2024-11-14 04:00:10,442 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1738 transitions. Word has length 5 [2024-11-14 04:00:10,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:10,443 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 1738 transitions. [2024-11-14 04:00:10,443 INFO L472 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) [2024-11-14 04:00:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1738 transitions. [2024-11-14 04:00:10,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 04:00:10,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:10,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 04:00:10,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:10,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:10,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:10,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:10,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1157550359, now seen corresponding path program 1 times [2024-11-14 04:00:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:10,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900014757] [2024-11-14 04:00:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:10,645 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 [2024-11-14 04:00:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:10,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:10,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:10,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 04:00:10,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:10,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:10,798 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:10,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900014757] [2024-11-14 04:00:10,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900014757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:10,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:10,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:00:10,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729624031] [2024-11-14 04:00:10,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:10,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:00:10,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:10,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:00:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:10,803 INFO L87 Difference]: Start difference. First operand 1502 states and 1738 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) [2024-11-14 04:00:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:10,985 INFO L93 Difference]: Finished difference Result 2754 states and 3195 transitions. [2024-11-14 04:00:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:10,989 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 [2024-11-14 04:00:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:11,001 INFO L225 Difference]: With dead ends: 2754 [2024-11-14 04:00:11,001 INFO L226 Difference]: Without dead ends: 2754 [2024-11-14 04:00:11,002 INFO L431 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 [2024-11-14 04:00:11,003 INFO L432 NwaCegarLoop]: 1891 mSDtfsCounter, 1114 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:11,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 3294 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:00:11,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2024-11-14 04:00:11,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1503. [2024-11-14 04:00:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 872 states have (on average 1.9575688073394495) internal successors, (1707), 1494 states have internal predecessors, (1707), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:11,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1739 transitions. [2024-11-14 04:00:11,055 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1739 transitions. Word has length 6 [2024-11-14 04:00:11,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:11,055 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1739 transitions. [2024-11-14 04:00:11,056 INFO L472 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) [2024-11-14 04:00:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1739 transitions. [2024-11-14 04:00:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 04:00:11,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:11,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:11,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:11,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:11,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:11,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash 334651421, now seen corresponding path program 1 times [2024-11-14 04:00:11,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:11,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255590801] [2024-11-14 04:00:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:11,258 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 [2024-11-14 04:00:11,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:11,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:11,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:11,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 04:00:11,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:11,489 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:11,489 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:11,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255590801] [2024-11-14 04:00:11,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255590801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:11,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:11,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:00:11,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197524299] [2024-11-14 04:00:11,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:11,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:00:11,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:11,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:00:11,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:11,491 INFO L87 Difference]: Start difference. First operand 1503 states and 1739 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) [2024-11-14 04:00:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:11,541 INFO L93 Difference]: Finished difference Result 1461 states and 1696 transitions. [2024-11-14 04:00:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:11,542 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 [2024-11-14 04:00:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:11,547 INFO L225 Difference]: With dead ends: 1461 [2024-11-14 04:00:11,548 INFO L226 Difference]: Without dead ends: 1461 [2024-11-14 04:00:11,548 INFO L431 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 [2024-11-14 04:00:11,548 INFO L432 NwaCegarLoop]: 1353 mSDtfsCounter, 71 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:11,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2643 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:00:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2024-11-14 04:00:11,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2024-11-14 04:00:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 854 states have (on average 1.9484777517564402) internal successors, (1664), 1452 states have internal predecessors, (1664), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1696 transitions. [2024-11-14 04:00:11,587 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1696 transitions. Word has length 11 [2024-11-14 04:00:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:11,587 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 1696 transitions. [2024-11-14 04:00:11,587 INFO L472 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) [2024-11-14 04:00:11,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1696 transitions. [2024-11-14 04:00:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 04:00:11,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:11,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:11,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:11,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:11,789 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:11,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash -522536810, now seen corresponding path program 1 times [2024-11-14 04:00:11,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378562347] [2024-11-14 04:00:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:11,792 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 [2024-11-14 04:00:11,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:11,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:11,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:11,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:00:11,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:12,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:12,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:12,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378562347] [2024-11-14 04:00:12,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378562347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:12,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:12,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:00:12,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555536213] [2024-11-14 04:00:12,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:12,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:00:12,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:00:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:12,013 INFO L87 Difference]: Start difference. First operand 1461 states and 1696 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) [2024-11-14 04:00:12,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:12,145 INFO L93 Difference]: Finished difference Result 1439 states and 1667 transitions. [2024-11-14 04:00:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:00:12,145 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 [2024-11-14 04:00:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:12,152 INFO L225 Difference]: With dead ends: 1439 [2024-11-14 04:00:12,152 INFO L226 Difference]: Without dead ends: 1439 [2024-11-14 04:00:12,152 INFO L431 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 [2024-11-14 04:00:12,153 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 48 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:12,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3898 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:00:12,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-14 04:00:12,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2024-11-14 04:00:12,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 846 states have (on average 1.9326241134751774) internal successors, (1635), 1430 states have internal predecessors, (1635), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1667 transitions. [2024-11-14 04:00:12,202 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1667 transitions. Word has length 13 [2024-11-14 04:00:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:12,202 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 1667 transitions. [2024-11-14 04:00:12,202 INFO L472 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) [2024-11-14 04:00:12,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1667 transitions. [2024-11-14 04:00:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 04:00:12,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:12,203 INFO L215 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] [2024-11-14 04:00:12,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:12,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:12,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:12,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:12,406 INFO L85 PathProgramCache]: Analyzing trace with hash -103996956, now seen corresponding path program 1 times [2024-11-14 04:00:12,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:12,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319320302] [2024-11-14 04:00:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:12,407 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 [2024-11-14 04:00:12,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:12,409 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:12,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:12,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:00:12,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:12,664 INFO L378 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 [2024-11-14 04:00:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:12,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:12,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319320302] [2024-11-14 04:00:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319320302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:12,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:00:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666476994] [2024-11-14 04:00:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:00:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:12,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:00:12,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:12,797 INFO L87 Difference]: Start difference. First operand 1439 states and 1667 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) [2024-11-14 04:00:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:16,953 INFO L93 Difference]: Finished difference Result 1439 states and 1667 transitions. [2024-11-14 04:00:16,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:00:16,954 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 [2024-11-14 04:00:16,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:16,960 INFO L225 Difference]: With dead ends: 1439 [2024-11-14 04:00:16,960 INFO L226 Difference]: Without dead ends: 1439 [2024-11-14 04:00:16,960 INFO L431 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 [2024-11-14 04:00:16,961 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 979 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:16,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1460 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-14 04:00:16,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-14 04:00:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1435. [2024-11-14 04:00:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 846 states have (on average 1.9278959810874705) internal successors, (1631), 1426 states have internal predecessors, (1631), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:16,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1663 transitions. [2024-11-14 04:00:16,992 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1663 transitions. Word has length 27 [2024-11-14 04:00:16,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:16,993 INFO L471 AbstractCegarLoop]: Abstraction has 1435 states and 1663 transitions. [2024-11-14 04:00:16,993 INFO L472 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) [2024-11-14 04:00:16,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1663 transitions. [2024-11-14 04:00:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 04:00:16,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:16,994 INFO L215 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] [2024-11-14 04:00:16,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:17,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:17,197 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:17,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:17,198 INFO L85 PathProgramCache]: Analyzing trace with hash -103996955, now seen corresponding path program 1 times [2024-11-14 04:00:17,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:17,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116374445] [2024-11-14 04:00:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:17,199 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 [2024-11-14 04:00:17,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:17,201 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:17,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:17,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:00:17,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:17,446 INFO L378 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 [2024-11-14 04:00:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:17,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:17,759 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:17,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116374445] [2024-11-14 04:00:17,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116374445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:17,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:17,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:00:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974184484] [2024-11-14 04:00:17,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:17,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:00:17,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:00:17,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:17,761 INFO L87 Difference]: Start difference. First operand 1435 states and 1663 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) [2024-11-14 04:00:22,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:22,984 INFO L93 Difference]: Finished difference Result 1588 states and 1683 transitions. [2024-11-14 04:00:22,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:00:22,985 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 [2024-11-14 04:00:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:22,991 INFO L225 Difference]: With dead ends: 1588 [2024-11-14 04:00:22,991 INFO L226 Difference]: Without dead ends: 1588 [2024-11-14 04:00:22,991 INFO L431 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 [2024-11-14 04:00:22,992 INFO L432 NwaCegarLoop]: 1127 mSDtfsCounter, 455 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:22,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2343 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-14 04:00:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-11-14 04:00:23,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1431. [2024-11-14 04:00:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 846 states have (on average 1.9231678486997636) internal successors, (1627), 1422 states have internal predecessors, (1627), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1659 transitions. [2024-11-14 04:00:23,032 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1659 transitions. Word has length 27 [2024-11-14 04:00:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:23,032 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 1659 transitions. [2024-11-14 04:00:23,033 INFO L472 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) [2024-11-14 04:00:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1659 transitions. [2024-11-14 04:00:23,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 04:00:23,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:23,034 INFO L215 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] [2024-11-14 04:00:23,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:23,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:23,235 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:23,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:23,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2130343620, now seen corresponding path program 1 times [2024-11-14 04:00:23,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:23,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193655436] [2024-11-14 04:00:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:23,236 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 [2024-11-14 04:00:23,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:23,238 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:23,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:23,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:00:23,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:23,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:23,603 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:23,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193655436] [2024-11-14 04:00:23,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193655436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:23,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:23,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:00:23,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532036302] [2024-11-14 04:00:23,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:23,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:00:23,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:23,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:00:23,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:23,605 INFO L87 Difference]: Start difference. First operand 1431 states and 1659 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-14 04:00:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:23,698 INFO L93 Difference]: Finished difference Result 1425 states and 1649 transitions. [2024-11-14 04:00:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:00:23,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2024-11-14 04:00:23,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:23,704 INFO L225 Difference]: With dead ends: 1425 [2024-11-14 04:00:23,704 INFO L226 Difference]: Without dead ends: 1425 [2024-11-14 04:00:23,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:00:23,705 INFO L432 NwaCegarLoop]: 1302 mSDtfsCounter, 21 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3875 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:23,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3875 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:00:23,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-11-14 04:00:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1425. [2024-11-14 04:00:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 840 states have (on average 1.925) internal successors, (1617), 1416 states have internal predecessors, (1617), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1649 transitions. [2024-11-14 04:00:23,735 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1649 transitions. Word has length 43 [2024-11-14 04:00:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:23,735 INFO L471 AbstractCegarLoop]: Abstraction has 1425 states and 1649 transitions. [2024-11-14 04:00:23,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-14 04:00:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1649 transitions. [2024-11-14 04:00:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 04:00:23,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:23,737 INFO L215 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] [2024-11-14 04:00:23,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:23,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:23,941 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:23,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:23,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2044141320, now seen corresponding path program 1 times [2024-11-14 04:00:23,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:23,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871649330] [2024-11-14 04:00:23,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:23,943 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 [2024-11-14 04:00:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:23,945 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:23,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:24,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:00:24,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:24,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:24,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:24,653 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:24,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871649330] [2024-11-14 04:00:24,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871649330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:24,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:24,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:00:24,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735837191] [2024-11-14 04:00:24,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:24,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:00:24,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:24,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:00:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:24,655 INFO L87 Difference]: Start difference. First operand 1425 states and 1649 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:00:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:24,951 INFO L93 Difference]: Finished difference Result 1642 states and 1895 transitions. [2024-11-14 04:00:24,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:24,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-14 04:00:24,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:24,956 INFO L225 Difference]: With dead ends: 1642 [2024-11-14 04:00:24,956 INFO L226 Difference]: Without dead ends: 1642 [2024-11-14 04:00:24,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:00:24,957 INFO L432 NwaCegarLoop]: 1389 mSDtfsCounter, 177 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:24,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2641 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:00:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-11-14 04:00:24,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1472. [2024-11-14 04:00:24,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 887 states have (on average 1.8759864712514092) internal successors, (1664), 1463 states have internal predecessors, (1664), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1696 transitions. [2024-11-14 04:00:24,989 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1696 transitions. Word has length 51 [2024-11-14 04:00:24,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:24,990 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 1696 transitions. [2024-11-14 04:00:24,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:00:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1696 transitions. [2024-11-14 04:00:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 04:00:24,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:24,995 INFO L215 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] [2024-11-14 04:00:24,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:25,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:25,206 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:25,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1434711606, now seen corresponding path program 1 times [2024-11-14 04:00:25,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:25,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87975199] [2024-11-14 04:00:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:25,237 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 [2024-11-14 04:00:25,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:25,239 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:25,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:25,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:00:25,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:25,666 INFO L378 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 [2024-11-14 04:00:25,680 INFO L378 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 [2024-11-14 04:00:26,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 04:00:26,656 INFO L378 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 14 treesize of output 9 [2024-11-14 04:00:26,685 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-14 04:00:26,686 INFO L378 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 [2024-11-14 04:00:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:26,720 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:26,720 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:26,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87975199] [2024-11-14 04:00:26,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87975199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:26,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:26,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:00:26,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845088944] [2024-11-14 04:00:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:26,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:00:26,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:00:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:26,723 INFO L87 Difference]: Start difference. First operand 1472 states and 1696 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:00:30,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:30,265 INFO L93 Difference]: Finished difference Result 1388 states and 1612 transitions. [2024-11-14 04:00:30,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:00:30,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-14 04:00:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:30,270 INFO L225 Difference]: With dead ends: 1388 [2024-11-14 04:00:30,270 INFO L226 Difference]: Without dead ends: 1388 [2024-11-14 04:00:30,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:30,271 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 1764 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:30,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 730 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 04:00:30,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-14 04:00:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1211. [2024-11-14 04:00:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 710 states have (on average 1.7605633802816902) internal successors, (1250), 1202 states have internal predecessors, (1250), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1282 transitions. [2024-11-14 04:00:30,298 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1282 transitions. Word has length 54 [2024-11-14 04:00:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:30,299 INFO L471 AbstractCegarLoop]: Abstraction has 1211 states and 1282 transitions. [2024-11-14 04:00:30,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:00:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1282 transitions. [2024-11-14 04:00:30,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 04:00:30,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:30,313 INFO L215 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] [2024-11-14 04:00:30,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:30,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:30,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:30,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1138270683, now seen corresponding path program 1 times [2024-11-14 04:00:30,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:30,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477165499] [2024-11-14 04:00:30,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:30,515 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 [2024-11-14 04:00:30,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:30,518 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:30,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:30,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:00:30,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:30,879 INFO L378 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 [2024-11-14 04:00:30,905 INFO L378 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 19 treesize of output 1 [2024-11-14 04:00:30,948 INFO L378 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 [2024-11-14 04:00:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:30,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:30,965 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:30,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477165499] [2024-11-14 04:00:30,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477165499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:30,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:30,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:00:30,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443661991] [2024-11-14 04:00:30,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:30,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:00:30,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:30,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:00:30,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:00:30,967 INFO L87 Difference]: Start difference. First operand 1211 states and 1282 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-14 04:00:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:35,501 INFO L93 Difference]: Finished difference Result 1210 states and 1281 transitions. [2024-11-14 04:00:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:00:35,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-11-14 04:00:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:35,507 INFO L225 Difference]: With dead ends: 1210 [2024-11-14 04:00:35,507 INFO L226 Difference]: Without dead ends: 1210 [2024-11-14 04:00:35,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:00:35,508 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 2 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:35,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3142 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-14 04:00:35,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-14 04:00:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2024-11-14 04:00:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 710 states have (on average 1.7591549295774649) internal successors, (1249), 1201 states have internal predecessors, (1249), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1281 transitions. [2024-11-14 04:00:35,531 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1281 transitions. Word has length 59 [2024-11-14 04:00:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:35,531 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1281 transitions. [2024-11-14 04:00:35,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-14 04:00:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1281 transitions. [2024-11-14 04:00:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 04:00:35,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:35,533 INFO L215 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] [2024-11-14 04:00:35,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:35,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:35,737 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:35,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1138270684, now seen corresponding path program 1 times [2024-11-14 04:00:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:35,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118377323] [2024-11-14 04:00:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:35,738 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 [2024-11-14 04:00:35,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:35,740 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:35,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:36,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:00:36,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:36,139 INFO L378 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 [2024-11-14 04:00:36,170 INFO L378 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 [2024-11-14 04:00:36,184 INFO L378 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 19 treesize of output 1 [2024-11-14 04:00:36,261 INFO L378 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 [2024-11-14 04:00:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:36,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:36,291 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118377323] [2024-11-14 04:00:36,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118377323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:36,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:00:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033307106] [2024-11-14 04:00:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:36,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:00:36,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:00:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:00:36,293 INFO L87 Difference]: Start difference. First operand 1210 states and 1281 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-14 04:00:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:42,257 INFO L93 Difference]: Finished difference Result 1209 states and 1280 transitions. [2024-11-14 04:00:42,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:00:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-11-14 04:00:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:42,261 INFO L225 Difference]: With dead ends: 1209 [2024-11-14 04:00:42,261 INFO L226 Difference]: Without dead ends: 1209 [2024-11-14 04:00:42,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:00:42,262 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 1 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 1748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:42,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3173 Invalid, 1748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-14 04:00:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2024-11-14 04:00:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2024-11-14 04:00:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 709 states have (on average 1.7602256699576868) internal successors, (1248), 1200 states have internal predecessors, (1248), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:00:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1280 transitions. [2024-11-14 04:00:42,282 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1280 transitions. Word has length 59 [2024-11-14 04:00:42,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:42,283 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1280 transitions. [2024-11-14 04:00:42,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-14 04:00:42,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1280 transitions. [2024-11-14 04:00:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 04:00:42,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:42,284 INFO L215 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] [2024-11-14 04:00:42,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:00:42,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:42,485 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:42,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:42,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1121461758, now seen corresponding path program 1 times [2024-11-14 04:00:42,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:42,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622478056] [2024-11-14 04:00:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:42,486 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 [2024-11-14 04:00:42,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:42,495 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:42,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:42,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:00:42,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:42,916 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:42,916 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622478056] [2024-11-14 04:00:42,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622478056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:42,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:42,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:00:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523458242] [2024-11-14 04:00:42,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:42,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:00:42,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:00:42,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:42,918 INFO L87 Difference]: Start difference. First operand 1209 states and 1280 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-14 04:00:42,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:42,991 INFO L93 Difference]: Finished difference Result 1212 states and 1285 transitions. [2024-11-14 04:00:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:00:42,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 67 [2024-11-14 04:00:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:42,997 INFO L225 Difference]: With dead ends: 1212 [2024-11-14 04:00:42,997 INFO L226 Difference]: Without dead ends: 1212 [2024-11-14 04:00:42,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:00:42,998 INFO L432 NwaCegarLoop]: 1228 mSDtfsCounter, 0 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3676 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 [2024-11-14 04:00:42,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3676 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:00:43,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2024-11-14 04:00:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1212. [2024-11-14 04:00:43,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 711 states have (on average 1.759493670886076) internal successors, (1251), 1203 states have internal predecessors, (1251), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 04:00:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1285 transitions. [2024-11-14 04:00:43,030 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1285 transitions. Word has length 67 [2024-11-14 04:00:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:43,031 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1285 transitions. [2024-11-14 04:00:43,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-14 04:00:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1285 transitions. [2024-11-14 04:00:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:00:43,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:43,035 INFO L215 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, 1] [2024-11-14 04:00:43,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:43,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:43,236 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:43,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:43,236 INFO L85 PathProgramCache]: Analyzing trace with hash 177133871, now seen corresponding path program 1 times [2024-11-14 04:00:43,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:43,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978534939] [2024-11-14 04:00:43,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:43,237 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 [2024-11-14 04:00:43,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:43,239 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:43,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:43,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:00:43,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:43,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:43,769 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:43,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978534939] [2024-11-14 04:00:43,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978534939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:43,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [973262451] [2024-11-14 04:00:43,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:43,770 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:00:43,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:00:43,775 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:00:43,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 04:00:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:44,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:00:44,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:44,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:44,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [973262451] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:44,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80723743] [2024-11-14 04:00:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:44,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:44,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:44,536 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:44,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 04:00:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:44,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:00:44,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:44,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:44,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80723743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:44,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:00:44,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2024-11-14 04:00:44,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770651740] [2024-11-14 04:00:44,990 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:00:44,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:00:44,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:00:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:00:44,992 INFO L87 Difference]: Start difference. First operand 1212 states and 1285 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-14 04:00:45,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:45,254 INFO L93 Difference]: Finished difference Result 1224 states and 1303 transitions. [2024-11-14 04:00:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:00:45,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 68 [2024-11-14 04:00:45,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:45,260 INFO L225 Difference]: With dead ends: 1224 [2024-11-14 04:00:45,260 INFO L226 Difference]: Without dead ends: 1224 [2024-11-14 04:00:45,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:00:45,261 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 5 mSDsluCounter, 7325 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8552 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:45,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8552 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:00:45,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-14 04:00:45,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1222. [2024-11-14 04:00:45,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 720 states have (on average 1.7583333333333333) internal successors, (1266), 1212 states have internal predecessors, (1266), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 04:00:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1300 transitions. [2024-11-14 04:00:45,280 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1300 transitions. Word has length 68 [2024-11-14 04:00:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:45,281 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1300 transitions. [2024-11-14 04:00:45,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-14 04:00:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1300 transitions. [2024-11-14 04:00:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 04:00:45,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:45,282 INFO L215 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, 1] [2024-11-14 04:00:45,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-14 04:00:45,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 04:00:45,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:45,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:45,883 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:00:45,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1585757506, now seen corresponding path program 2 times [2024-11-14 04:00:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:45,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286758254] [2024-11-14 04:00:45,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:00:45,884 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 [2024-11-14 04:00:45,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:45,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:00:45,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:00:46,403 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:00:46,403 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:00:46,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:00:46,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:46,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:46,945 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286758254] [2024-11-14 04:00:46,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286758254] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:46,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2098318756] [2024-11-14 04:00:46,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:00:46,946 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:00:46,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:00:46,948 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:00:46,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 04:00:48,356 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:00:48,356 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:00:48,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:00:48,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:48,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:00:48,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2098318756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:48,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032180037] [2024-11-14 04:00:48,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:00:48,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:48,519 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:48,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 04:01:13,147 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:01:13,147 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:01:13,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:01:13,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:13,172 INFO L378 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 [2024-11-14 04:01:13,398 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-14 04:01:13,398 INFO L378 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 [2024-11-14 04:01:13,442 INFO L378 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 19 treesize of output 1 [2024-11-14 04:01:13,827 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-14 04:01:13,827 INFO L378 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 44 treesize of output 43 [2024-11-14 04:01:13,913 INFO L378 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 [2024-11-14 04:01:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:01:13,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:14,124 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-14 04:01:14,125 INFO L378 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 25 treesize of output 24 [2024-11-14 04:01:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032180037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:14,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2024-11-14 04:01:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 10] total 23 [2024-11-14 04:01:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900484017] [2024-11-14 04:01:14,266 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:01:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:01:14,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:01:14,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=502, Unknown=9, NotChecked=0, Total=600 [2024-11-14 04:01:14,269 INFO L87 Difference]: Start difference. First operand 1222 states and 1300 transitions. Second operand has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:01:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:35,024 INFO L93 Difference]: Finished difference Result 1238 states and 1323 transitions. [2024-11-14 04:01:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 04:01:35,025 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-14 04:01:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:35,029 INFO L225 Difference]: With dead ends: 1238 [2024-11-14 04:01:35,029 INFO L226 Difference]: Without dead ends: 1232 [2024-11-14 04:01:35,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=389, Invalid=2050, Unknown=11, NotChecked=0, Total=2450 [2024-11-14 04:01:35,031 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 921 mSDsluCounter, 10371 mSDsCounter, 0 mSdLazyCounter, 9111 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 11110 SdHoareTripleChecker+Invalid, 9148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 9111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:35,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 11110 Invalid, 9148 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 9111 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2024-11-14 04:01:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-14 04:01:35,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1230. [2024-11-14 04:01:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 729 states have (on average 1.7503429355281208) internal successors, (1276), 1220 states have internal predecessors, (1276), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 04:01:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1310 transitions. [2024-11-14 04:01:35,074 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1310 transitions. Word has length 71 [2024-11-14 04:01:35,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:35,075 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1310 transitions. [2024-11-14 04:01:35,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 04:01:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1310 transitions. [2024-11-14 04:01:35,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 04:01:35,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:35,076 INFO L215 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, 1] [2024-11-14 04:01:35,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-14 04:01:35,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:01:35,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 04:01:35,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:35,677 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:01:35,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1272035805, now seen corresponding path program 1 times [2024-11-14 04:01:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:01:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121262535] [2024-11-14 04:01:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:35,678 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 [2024-11-14 04:01:35,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:01:35,680 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:01:35,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:01:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:36,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 04:01:36,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:36,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:36,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:01:36,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121262535] [2024-11-14 04:01:36,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121262535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:36,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [739573755] [2024-11-14 04:01:36,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:36,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:01:36,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:01:36,913 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:01:36,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-14 04:01:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:37,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 04:01:37,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:37,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:37,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [739573755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:37,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525044687] [2024-11-14 04:01:37,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:37,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:37,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:37,753 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:37,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 04:01:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:38,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:01:38,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:38,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:38,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525044687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:38,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:01:38,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 38 [2024-11-14 04:01:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349527221] [2024-11-14 04:01:38,945 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:38,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-14 04:01:38,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:01:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-14 04:01:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=959, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:01:38,947 INFO L87 Difference]: Start difference. First operand 1230 states and 1310 transitions. Second operand has 38 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 38 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:01:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:41,613 INFO L93 Difference]: Finished difference Result 1256 states and 1352 transitions. [2024-11-14 04:01:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-14 04:01:41,614 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 38 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 77 [2024-11-14 04:01:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:41,618 INFO L225 Difference]: With dead ends: 1256 [2024-11-14 04:01:41,618 INFO L226 Difference]: Without dead ends: 1250 [2024-11-14 04:01:41,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1168, Invalid=2254, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 04:01:41,620 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 28 mSDsluCounter, 17113 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 18340 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:41,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 18340 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:01:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-14 04:01:41,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1248. [2024-11-14 04:01:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 747 states have (on average 1.7389558232931728) internal successors, (1299), 1238 states have internal predecessors, (1299), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 04:01:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1333 transitions. [2024-11-14 04:01:41,636 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1333 transitions. Word has length 77 [2024-11-14 04:01:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:41,636 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1333 transitions. [2024-11-14 04:01:41,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 38 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:01:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1333 transitions. [2024-11-14 04:01:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:01:41,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:41,637 INFO L215 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, 1] [2024-11-14 04:01:41,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 04:01:41,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:01:42,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-14 04:01:42,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:01:42,243 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:01:42,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1850269667, now seen corresponding path program 2 times [2024-11-14 04:01:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:01:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25027178] [2024-11-14 04:01:42,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:01:42,244 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 [2024-11-14 04:01:42,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:01:42,246 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:01:42,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 (25)] Waiting until timeout for monitored process [2024-11-14 04:01:42,763 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:01:42,763 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:01:42,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 04:01:42,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:43,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:46,659 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:01:46,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25027178] [2024-11-14 04:01:46,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25027178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:46,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [465481237] [2024-11-14 04:01:46,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:01:46,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:01:46,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:01:46,662 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:01:46,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-14 04:01:48,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:01:48,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:01:48,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 04:01:48,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:48,391 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:48,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:01:49,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [465481237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:49,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98512743] [2024-11-14 04:01:49,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:01:49,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:49,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:49,175 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:49,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 04:02:02,141 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:02:02,141 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:02:02,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:02:02,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:02:03,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:02:03,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98512743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:02:03,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:02:03,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26, 26, 26, 26] total 68 [2024-11-14 04:02:03,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32679478] [2024-11-14 04:02:03,967 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:02:03,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-14 04:02:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:02:03,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-14 04:02:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1140, Invalid=3416, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:02:03,971 INFO L87 Difference]: Start difference. First operand 1248 states and 1333 transitions. Second operand has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 68 states have internal predecessors, (131), 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) [2024-11-14 04:02:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:15,482 INFO L93 Difference]: Finished difference Result 1290 states and 1408 transitions. [2024-11-14 04:02:15,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 04:02:15,483 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 68 states have internal predecessors, (131), 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 89 [2024-11-14 04:02:15,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:15,492 INFO L225 Difference]: With dead ends: 1290 [2024-11-14 04:02:15,495 INFO L226 Difference]: Without dead ends: 1284 [2024-11-14 04:02:15,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=3648, Invalid=8784, Unknown=0, NotChecked=0, Total=12432 [2024-11-14 04:02:15,501 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 41 mSDsluCounter, 28142 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 29369 SdHoareTripleChecker+Invalid, 2613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:15,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 29369 Invalid, 2613 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 04:02:15,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2024-11-14 04:02:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1284. [2024-11-14 04:02:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 783 states have (on average 1.7203065134099618) internal successors, (1347), 1274 states have internal predecessors, (1347), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-14 04:02:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1381 transitions. [2024-11-14 04:02:15,529 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1381 transitions. Word has length 89 [2024-11-14 04:02:15,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:15,529 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 1381 transitions. [2024-11-14 04:02:15,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 68 states have internal predecessors, (131), 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) [2024-11-14 04:02:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1381 transitions. [2024-11-14 04:02:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-14 04:02:15,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:15,530 INFO L215 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, 1] [2024-11-14 04:02:15,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-14 04:02:15,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 (25)] Ended with exit code 0 [2024-11-14 04:02:15,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 04:02:16,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:16,131 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-14 04:02:16,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:16,132 INFO L85 PathProgramCache]: Analyzing trace with hash 68042179, now seen corresponding path program 3 times [2024-11-14 04:02:16,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:02:16,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672399446] [2024-11-14 04:02:16,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:02:16,132 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 [2024-11-14 04:02:16,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:02:16,137 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:02:16,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/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 (28)] Waiting until timeout for monitored process [2024-11-14 04:02:18,682 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-14 04:02:18,682 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:02:18,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-14 04:02:18,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:18,729 INFO L378 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 [2024-11-14 04:02:19,031 INFO L378 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 [2024-11-14 04:02:19,054 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-14 04:02:19,054 INFO L378 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 [2024-11-14 04:02:19,097 INFO L378 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 11 treesize of output 7 [2024-11-14 04:02:19,114 INFO L378 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 15 treesize of output 1 [2024-11-14 04:02:19,239 INFO L378 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 18 treesize of output 10 [2024-11-14 04:02:19,245 INFO L378 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 7 treesize of output 3 [2024-11-14 04:02:20,420 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-14 04:02:20,421 INFO L378 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 50 treesize of output 45 [2024-11-14 04:02:20,430 INFO L378 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 24 treesize of output 11 [2024-11-14 04:02:20,491 INFO L378 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 25 treesize of output 13 [2024-11-14 04:02:20,499 INFO L378 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 7 treesize of output 3 [2024-11-14 04:02:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-14 04:02:20,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:22,304 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2899 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2900 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2899) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2900) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2899 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2899) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2024-11-14 04:02:22,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:02:22,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672399446] [2024-11-14 04:02:22,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672399446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:22,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1115396486] [2024-11-14 04:02:22,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:02:22,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:02:22,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:02:22,311 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:02:22,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-14 04:08:05,224 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-14 04:08:05,224 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:08:05,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-14 04:08:05,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:08:05,413 INFO L378 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 [2024-11-14 04:08:05,585 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-14 04:08:05,585 INFO L378 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 [2024-11-14 04:08:05,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-14 04:08:05,647 INFO L378 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 [2024-11-14 04:08:05,657 INFO L378 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 19 treesize of output 1 [2024-11-14 04:08:05,831 INFO L378 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 [2024-11-14 04:08:05,837 INFO L378 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 [2024-11-14 04:08:06,846 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-14 04:08:06,847 INFO L378 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 62 treesize of output 57 [2024-11-14 04:08:06,859 INFO L378 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 30 treesize of output 13 [2024-11-14 04:08:06,972 INFO L378 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 [2024-11-14 04:08:06,983 INFO L378 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 [2024-11-14 04:08:06,989 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-14 04:08:06,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:08:08,580 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3437 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3437) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_3437 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3436 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3437) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3436) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-14 04:08:08,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1115396486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:08:08,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5102074] [2024-11-14 04:08:08,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:08:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:08:08,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:08:08,587 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:08:08,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ba9ee4-ce9a-4d2d-8c2d-3c1a543d350f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process