./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:46:49,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:46:49,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 05:46:49,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:46:49,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:46:49,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:46:49,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:46:49,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:46:49,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:46:49,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:46:49,844 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:46:49,845 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:46:49,845 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:46:49,845 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:46:49,845 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:46:49,845 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:46:49,845 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:46:49,846 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:46:49,846 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:46:49,846 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:46:49,846 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:46:49,846 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:46:49,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:46:49,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:46:49,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:46:49,847 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:46:49,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:46:49,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:46:49,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:46:49,848 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:46:49,848 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:46:49,848 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 05:46:49,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:46:49,849 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:46:49,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:46:49,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:46:49,849 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:46:49,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:46:49,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:46:49,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:46:49,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:46:49,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:46:49,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:46:49,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:46:49,851 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:46:49,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:46:49,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:46:49,851 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:46:49,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:46:49,851 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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2024-11-14 05:46:50,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:46:50,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:46:50,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:46:50,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:46:50,164 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:46:50,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i Unable to find full path for "g++" [2024-11-14 05:46:52,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:46:52,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:46:52,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2024-11-14 05:46:52,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data/e46fac8e3/0d747d6788f14780b1dff9617a1ecb80/FLAGd78248f91 [2024-11-14 05:46:52,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data/e46fac8e3/0d747d6788f14780b1dff9617a1ecb80 [2024-11-14 05:46:52,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:46:52,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:46:52,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:46:52,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:46:52,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:46:52,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:46:52" (1/1) ... [2024-11-14 05:46:52,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b8c89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:52, skipping insertion in model container [2024-11-14 05:46:52,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:46:52" (1/1) ... [2024-11-14 05:46:52,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:46:53,438 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 05:46:53,505 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 05:46:53,516 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 05:46:53,527 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 05:46:53,543 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 05:46:53,574 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 05:46:53,578 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 05:46:53,582 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 05:46:53,587 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 05:46:53,590 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 05:46:53,592 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 05:46:53,601 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 05:46:53,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:46:53,642 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 05:46:53,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1873249a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:53, skipping insertion in model container [2024-11-14 05:46:53,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:46:53,646 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 05:46:53,649 INFO L158 Benchmark]: Toolchain (without parser) took 912.94ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 73.3MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:46:53,652 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:46:53,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 909.30ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 73.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:46:53,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 909.30ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 73.3MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: 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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:46:56,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:46:56,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-14 05:46:56,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:46:56,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:46:56,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:46:56,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:46:56,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:46:56,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:46:56,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:46:56,980 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:46:56,980 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:46:56,981 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:46:56,981 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:46:56,981 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:46:56,981 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:46:56,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:46:56,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:46:56,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:46:56,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:46:56,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:46:56,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:46:56,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:46:56,983 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:46:56,983 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:46:56,984 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 05:46:56,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:46:56,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:46:56,984 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:46:56,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:46:56,984 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:46:56,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:46:56,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:46:56,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:46:56,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:46:56,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:46:56,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:46:56,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:46:56,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:46:56,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:46:56,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:46:56,987 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:46:56,987 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:46:56,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:46:56,987 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:46:56,987 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_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2024-11-14 05:46:57,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:46:57,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:46:57,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:46:57,448 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:46:57,448 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:46:57,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i Unable to find full path for "g++" [2024-11-14 05:46:59,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:46:59,935 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:46:59,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2024-11-14 05:46:59,956 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data/9655f03d4/70d4257f3f494748ac6972a1f2282fdb/FLAG4526908c3 [2024-11-14 05:46:59,976 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/data/9655f03d4/70d4257f3f494748ac6972a1f2282fdb [2024-11-14 05:46:59,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:46:59,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:46:59,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:46:59,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:46:59,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:46:59,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:46:59" (1/1) ... [2024-11-14 05:46:59,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cda33f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:59, skipping insertion in model container [2024-11-14 05:46:59,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:46:59" (1/1) ... [2024-11-14 05:47:00,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:47:00,735 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 05:47:00,817 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 05:47:00,824 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 05:47:00,838 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 05:47:00,856 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 05:47:00,877 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 05:47:00,879 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 05:47:00,884 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 05:47:00,887 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 05:47:00,888 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 05:47:00,890 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 05:47:00,904 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 05:47:00,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:47:00,936 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 05:47:00,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:47:00,998 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 05:47:01,031 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 05:47:01,043 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 05:47:01,051 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 05:47:01,067 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 05:47:01,100 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 05:47:01,101 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 05:47:01,108 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 05:47:01,116 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 05:47:01,118 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 05:47:01,119 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 05:47:01,127 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 05:47:01,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:47:01,145 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:47:01,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:47:01,384 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:47:01,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01 WrapperNode [2024-11-14 05:47:01,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:47:01,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:47:01,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:47:01,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:47:01,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,529 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 784 [2024-11-14 05:47:01,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:47:01,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:47:01,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:47:01,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:47:01,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:47:01,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:47:01,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:47:01,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:47:01,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (1/1) ... [2024-11-14 05:47:01,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:47:01,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:47:01,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:47:01,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:47:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 05:47:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:47:01,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:47:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:47:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:47:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:47:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:47:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:47:02,066 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:47:02,068 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:47:02,072 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 05:47:06,274 INFO L? ?]: Removed 903 outVars from TransFormulas that were not future-live. [2024-11-14 05:47:06,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:47:06,315 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:47:06,316 INFO L316 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-14 05:47:06,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:47:06 BoogieIcfgContainer [2024-11-14 05:47:06,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:47:06,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:47:06,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:47:06,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:47:06,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:46:59" (1/3) ... [2024-11-14 05:47:06,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7993a010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:47:06, skipping insertion in model container [2024-11-14 05:47:06,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:01" (2/3) ... [2024-11-14 05:47:06,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7993a010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:47:06, skipping insertion in model container [2024-11-14 05:47:06,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:47:06" (3/3) ... [2024-11-14 05:47:06,332 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-2.i [2024-11-14 05:47:06,349 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:47:06,351 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test1-2.i that has 3 procedures, 857 locations, 1 initial locations, 24 loop locations, and 425 error locations. [2024-11-14 05:47:06,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:47:06,447 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;@2ab947b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:47:06,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 425 error locations. [2024-11-14 05:47:06,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 857 states, 419 states have (on average 2.2291169451073984) internal successors, (934), 851 states have internal predecessors, (934), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:06,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:47:06,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:06,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:47:06,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:06,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2024-11-14 05:47:06,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:06,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582176660] [2024-11-14 05:47:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:06,473 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 05:47:06,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:06,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:06,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:06,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:47:06,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:06,661 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 05:47:06,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:06,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582176660] [2024-11-14 05:47:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582176660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:06,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:06,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:47:06,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835464135] [2024-11-14 05:47:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:06,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:47:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:47:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:47:06,706 INFO L87 Difference]: Start difference. First operand has 857 states, 419 states have (on average 2.2291169451073984) internal successors, (934), 851 states have internal predecessors, (934), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) 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 05:47:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:06,793 INFO L93 Difference]: Finished difference Result 847 states and 904 transitions. [2024-11-14 05:47:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:47:06,798 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 05:47:06,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:06,816 INFO L225 Difference]: With dead ends: 847 [2024-11-14 05:47:06,816 INFO L226 Difference]: Without dead ends: 845 [2024-11-14 05:47:06,822 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 05:47:06,825 INFO L432 NwaCegarLoop]: 904 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, 904 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 05:47:06,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:47:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-14 05:47:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-14 05:47:06,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 413 states have (on average 2.1210653753026634) internal successors, (876), 839 states have internal predecessors, (876), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:06,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 902 transitions. [2024-11-14 05:47:06,913 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 902 transitions. Word has length 5 [2024-11-14 05:47:06,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:06,913 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 902 transitions. [2024-11-14 05:47:06,914 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 05:47:06,914 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 902 transitions. [2024-11-14 05:47:06,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:47:06,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:06,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:47:06,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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)] Forceful destruction successful, exit code 0 [2024-11-14 05:47:07,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:07,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:07,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:07,117 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2024-11-14 05:47:07,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:07,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204999520] [2024-11-14 05:47:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:07,118 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 05:47:07,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:07,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:07,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:07,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:47:07,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:07,256 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 05:47:07,277 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 05:47:07,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:07,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:07,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204999520] [2024-11-14 05:47:07,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204999520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:07,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:07,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:47:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132955765] [2024-11-14 05:47:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:07,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:07,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:07,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:07,281 INFO L87 Difference]: Start difference. First operand 845 states and 902 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 05:47:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:09,104 INFO L93 Difference]: Finished difference Result 798 states and 856 transitions. [2024-11-14 05:47:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:47:09,105 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 05:47:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:09,108 INFO L225 Difference]: With dead ends: 798 [2024-11-14 05:47:09,109 INFO L226 Difference]: Without dead ends: 798 [2024-11-14 05:47:09,109 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 05:47:09,110 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 535 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:09,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 659 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 05:47:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-14 05:47:09,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 796. [2024-11-14 05:47:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 413 states have (on average 2.002421307506053) internal successors, (827), 790 states have internal predecessors, (827), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:09,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 853 transitions. [2024-11-14 05:47:09,146 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 853 transitions. Word has length 5 [2024-11-14 05:47:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:09,146 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 853 transitions. [2024-11-14 05:47:09,146 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 05:47:09,146 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 853 transitions. [2024-11-14 05:47:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:47:09,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:09,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:47:09,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:09,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:09,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:09,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2024-11-14 05:47:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:09,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4550265] [2024-11-14 05:47:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:09,348 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 05:47:09,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:09,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:09,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:09,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:47:09,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:09,490 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 05:47:09,521 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 05:47:09,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:09,521 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:09,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4550265] [2024-11-14 05:47:09,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4550265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:09,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:09,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:47:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342839110] [2024-11-14 05:47:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:09,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:09,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:09,523 INFO L87 Difference]: Start difference. First operand 796 states and 853 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 05:47:11,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:11,452 INFO L93 Difference]: Finished difference Result 871 states and 932 transitions. [2024-11-14 05:47:11,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:47:11,453 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 05:47:11,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:11,456 INFO L225 Difference]: With dead ends: 871 [2024-11-14 05:47:11,457 INFO L226 Difference]: Without dead ends: 871 [2024-11-14 05:47:11,457 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 05:47:11,457 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 263 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:11,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1049 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 05:47:11,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-11-14 05:47:11,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 823. [2024-11-14 05:47:11,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 450 states have (on average 1.98) internal successors, (891), 817 states have internal predecessors, (891), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 917 transitions. [2024-11-14 05:47:11,482 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 917 transitions. Word has length 5 [2024-11-14 05:47:11,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:11,482 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 917 transitions. [2024-11-14 05:47:11,482 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 05:47:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 917 transitions. [2024-11-14 05:47:11,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:47:11,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:11,483 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:47:11,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:11,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:11,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr312REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:11,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1156709288, now seen corresponding path program 1 times [2024-11-14 05:47:11,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622967851] [2024-11-14 05:47:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:11,685 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 05:47:11,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:11,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:11,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:11,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:47:11,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:11,797 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 05:47:11,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:11,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:11,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622967851] [2024-11-14 05:47:11,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622967851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:11,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:11,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:11,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770171267] [2024-11-14 05:47:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:11,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:11,799 INFO L87 Difference]: Start difference. First operand 823 states and 917 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 05:47:11,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:11,914 INFO L93 Difference]: Finished difference Result 1396 states and 1553 transitions. [2024-11-14 05:47:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:47:11,918 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 05:47:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:11,923 INFO L225 Difference]: With dead ends: 1396 [2024-11-14 05:47:11,923 INFO L226 Difference]: Without dead ends: 1396 [2024-11-14 05:47:11,923 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 05:47:11,924 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 555 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1676 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 05:47:11,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1676 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:47:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-14 05:47:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 824. [2024-11-14 05:47:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 451 states have (on average 1.9778270509977827) internal successors, (892), 818 states have internal predecessors, (892), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:11,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 918 transitions. [2024-11-14 05:47:11,953 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 918 transitions. Word has length 6 [2024-11-14 05:47:11,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:11,953 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 918 transitions. [2024-11-14 05:47:11,953 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 05:47:11,954 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 918 transitions. [2024-11-14 05:47:11,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:47:11,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:11,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:47:11,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,157 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:12,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash 334651421, now seen corresponding path program 1 times [2024-11-14 05:47:12,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:12,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517557172] [2024-11-14 05:47:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:12,158 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 05:47:12,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:12,162 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:12,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:47:12,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:12,309 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 05:47:12,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:12,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517557172] [2024-11-14 05:47:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517557172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:12,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:12,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:12,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509312091] [2024-11-14 05:47:12,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:12,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:12,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:12,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:12,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:12,311 INFO L87 Difference]: Start difference. First operand 824 states and 918 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 05:47:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:12,351 INFO L93 Difference]: Finished difference Result 782 states and 875 transitions. [2024-11-14 05:47:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:47:12,352 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 05:47:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:12,355 INFO L225 Difference]: With dead ends: 782 [2024-11-14 05:47:12,355 INFO L226 Difference]: Without dead ends: 782 [2024-11-14 05:47:12,356 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 05:47:12,356 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 71 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1513 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 05:47:12,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1513 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:47:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-14 05:47:12,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2024-11-14 05:47:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 433 states have (on average 1.9607390300230947) internal successors, (849), 776 states have internal predecessors, (849), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 875 transitions. [2024-11-14 05:47:12,375 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 875 transitions. Word has length 11 [2024-11-14 05:47:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:12,376 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 875 transitions. [2024-11-14 05:47:12,376 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 05:47:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 875 transitions. [2024-11-14 05:47:12,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:47:12,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:12,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:47:12,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,577 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:12,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:12,577 INFO L85 PathProgramCache]: Analyzing trace with hash -522536810, now seen corresponding path program 1 times [2024-11-14 05:47:12,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:12,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050746605] [2024-11-14 05:47:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:12,578 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 05:47:12,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:12,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:12,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:47:12,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:12,740 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 05:47:12,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:12,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:12,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050746605] [2024-11-14 05:47:12,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050746605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:12,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:12,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:47:12,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289190655] [2024-11-14 05:47:12,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:12,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:47:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:12,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:47:12,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:47:12,742 INFO L87 Difference]: Start difference. First operand 782 states and 875 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 05:47:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:12,851 INFO L93 Difference]: Finished difference Result 760 states and 846 transitions. [2024-11-14 05:47:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:47:12,852 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 05:47:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:12,855 INFO L225 Difference]: With dead ends: 760 [2024-11-14 05:47:12,855 INFO L226 Difference]: Without dead ends: 760 [2024-11-14 05:47:12,856 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 05:47:12,856 INFO L432 NwaCegarLoop]: 743 mSDtfsCounter, 48 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2203 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 05:47:12,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2203 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:47:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-14 05:47:12,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2024-11-14 05:47:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 425 states have (on average 1.9294117647058824) internal successors, (820), 754 states have internal predecessors, (820), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:12,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 846 transitions. [2024-11-14 05:47:12,876 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 846 transitions. Word has length 13 [2024-11-14 05:47:12,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:12,876 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 846 transitions. [2024-11-14 05:47:12,876 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 05:47:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 846 transitions. [2024-11-14 05:47:12,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 05:47:12,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:12,877 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 05:47:12,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:13,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:13,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:13,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:13,079 INFO L85 PathProgramCache]: Analyzing trace with hash -103996956, now seen corresponding path program 1 times [2024-11-14 05:47:13,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:13,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446531868] [2024-11-14 05:47:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:13,079 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 05:47:13,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:13,081 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:13,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:13,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:47:13,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:13,240 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 05:47:13,348 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 05:47:13,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:13,348 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:13,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446531868] [2024-11-14 05:47:13,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446531868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:13,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:13,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232680332] [2024-11-14 05:47:13,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:13,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:47:13,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:13,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:47:13,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:47:13,349 INFO L87 Difference]: Start difference. First operand 760 states and 846 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 05:47:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:15,489 INFO L93 Difference]: Finished difference Result 760 states and 846 transitions. [2024-11-14 05:47:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:47:15,490 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 05:47:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:15,493 INFO L225 Difference]: With dead ends: 760 [2024-11-14 05:47:15,494 INFO L226 Difference]: Without dead ends: 760 [2024-11-14 05:47:15,494 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 05:47:15,496 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 472 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:15,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 942 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 05:47:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-14 05:47:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 756. [2024-11-14 05:47:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 425 states have (on average 1.92) internal successors, (816), 750 states have internal predecessors, (816), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 842 transitions. [2024-11-14 05:47:15,518 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 842 transitions. Word has length 27 [2024-11-14 05:47:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:15,518 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 842 transitions. [2024-11-14 05:47:15,518 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 05:47:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 842 transitions. [2024-11-14 05:47:15,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 05:47:15,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:15,519 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 05:47:15,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:15,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:15,720 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:15,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:15,720 INFO L85 PathProgramCache]: Analyzing trace with hash -103996955, now seen corresponding path program 1 times [2024-11-14 05:47:15,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:15,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028542667] [2024-11-14 05:47:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:15,721 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 05:47:15,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:15,723 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:15,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:15,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:47:15,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:15,889 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 05:47:16,160 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 05:47:16,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:16,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:16,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028542667] [2024-11-14 05:47:16,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028542667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:16,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:16,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855595031] [2024-11-14 05:47:16,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:16,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:47:16,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:16,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:47:16,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:47:16,162 INFO L87 Difference]: Start difference. First operand 756 states and 842 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 05:47:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:18,688 INFO L93 Difference]: Finished difference Result 804 states and 857 transitions. [2024-11-14 05:47:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:47:18,689 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 05:47:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:18,692 INFO L225 Difference]: With dead ends: 804 [2024-11-14 05:47:18,692 INFO L226 Difference]: Without dead ends: 804 [2024-11-14 05:47:18,692 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 05:47:18,693 INFO L432 NwaCegarLoop]: 679 mSDtfsCounter, 196 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:18,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1369 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 05:47:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-11-14 05:47:18,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 752. [2024-11-14 05:47:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 425 states have (on average 1.9105882352941177) internal successors, (812), 746 states have internal predecessors, (812), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 838 transitions. [2024-11-14 05:47:18,711 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 838 transitions. Word has length 27 [2024-11-14 05:47:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:18,711 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 838 transitions. [2024-11-14 05:47:18,711 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 05:47:18,711 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 838 transitions. [2024-11-14 05:47:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 05:47:18,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:18,712 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 05:47:18,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:18,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:18,916 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:18,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2130343620, now seen corresponding path program 1 times [2024-11-14 05:47:18,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:18,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461907946] [2024-11-14 05:47:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:18,918 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 05:47:18,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:18,921 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:18,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:19,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:47:19,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:19,228 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 05:47:19,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:19,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:19,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461907946] [2024-11-14 05:47:19,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461907946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:19,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:19,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:47:19,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581603849] [2024-11-14 05:47:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:19,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:47:19,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:19,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:47:19,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:47:19,230 INFO L87 Difference]: Start difference. First operand 752 states and 838 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 05:47:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:19,321 INFO L93 Difference]: Finished difference Result 746 states and 828 transitions. [2024-11-14 05:47:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:47:19,321 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 05:47:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:19,324 INFO L225 Difference]: With dead ends: 746 [2024-11-14 05:47:19,324 INFO L226 Difference]: Without dead ends: 746 [2024-11-14 05:47:19,324 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 05:47:19,326 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 21 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2180 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 05:47:19,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2180 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:47:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-14 05:47:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2024-11-14 05:47:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 419 states have (on average 1.9140811455847255) internal successors, (802), 740 states have internal predecessors, (802), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 828 transitions. [2024-11-14 05:47:19,345 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 828 transitions. Word has length 43 [2024-11-14 05:47:19,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:19,347 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 828 transitions. [2024-11-14 05:47:19,347 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 05:47:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 828 transitions. [2024-11-14 05:47:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-14 05:47:19,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:19,350 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 05:47:19,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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)] Ended with exit code 0 [2024-11-14 05:47:19,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:19,551 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:19,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:19,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2044141320, now seen corresponding path program 1 times [2024-11-14 05:47:19,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:19,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670566206] [2024-11-14 05:47:19,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:19,552 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 05:47:19,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:19,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:19,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:19,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:47:19,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:20,201 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 05:47:20,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:20,201 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:20,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670566206] [2024-11-14 05:47:20,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670566206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:20,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:20,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017178418] [2024-11-14 05:47:20,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:20,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:20,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:20,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:20,203 INFO L87 Difference]: Start difference. First operand 746 states and 828 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 05:47:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:20,458 INFO L93 Difference]: Finished difference Result 963 states and 1074 transitions. [2024-11-14 05:47:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:47:20,459 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 05:47:20,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:20,463 INFO L225 Difference]: With dead ends: 963 [2024-11-14 05:47:20,463 INFO L226 Difference]: Without dead ends: 963 [2024-11-14 05:47:20,464 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 05:47:20,464 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 177 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:20,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1510 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:47:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-14 05:47:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 793. [2024-11-14 05:47:20,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 466 states have (on average 1.8218884120171674) internal successors, (849), 787 states have internal predecessors, (849), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 875 transitions. [2024-11-14 05:47:20,486 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 875 transitions. Word has length 51 [2024-11-14 05:47:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:20,487 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 875 transitions. [2024-11-14 05:47:20,487 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 05:47:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 875 transitions. [2024-11-14 05:47:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 05:47:20,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:20,488 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 05:47:20,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:20,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:20,689 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:20,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1434711606, now seen corresponding path program 1 times [2024-11-14 05:47:20,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:20,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923430471] [2024-11-14 05:47:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:20,690 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 05:47:20,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:20,694 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:20,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:20,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:47:20,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:21,003 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 05:47:21,011 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 05:47:21,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 05:47:21,728 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 05:47:21,752 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-14 05:47:21,753 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 05:47:21,770 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 05:47:21,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:21,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:21,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923430471] [2024-11-14 05:47:21,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923430471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:21,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:21,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:21,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813452778] [2024-11-14 05:47:21,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:21,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:47:21,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:21,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:47:21,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:47:21,772 INFO L87 Difference]: Start difference. First operand 793 states and 875 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 05:47:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:23,443 INFO L93 Difference]: Finished difference Result 755 states and 837 transitions. [2024-11-14 05:47:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:47:23,444 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 05:47:23,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:23,446 INFO L225 Difference]: With dead ends: 755 [2024-11-14 05:47:23,446 INFO L226 Difference]: Without dead ends: 755 [2024-11-14 05:47:23,447 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 05:47:23,447 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 748 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:23,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 574 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:47:23,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-14 05:47:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 718. [2024-11-14 05:47:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 429 states have (on average 1.7179487179487178) internal successors, (737), 712 states have internal predecessors, (737), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 763 transitions. [2024-11-14 05:47:23,462 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 763 transitions. Word has length 54 [2024-11-14 05:47:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:23,462 INFO L471 AbstractCegarLoop]: Abstraction has 718 states and 763 transitions. [2024-11-14 05:47:23,462 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 05:47:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 763 transitions. [2024-11-14 05:47:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 05:47:23,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:23,463 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 05:47:23,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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)] Ended with exit code 0 [2024-11-14 05:47:23,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:23,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:23,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1138270683, now seen corresponding path program 1 times [2024-11-14 05:47:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:23,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482609658] [2024-11-14 05:47:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:23,665 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 05:47:23,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:23,669 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:23,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:23,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:47:23,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:23,938 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 05:47:23,956 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 05:47:23,993 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 05:47:24,009 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 05:47:24,009 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:24,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:24,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482609658] [2024-11-14 05:47:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482609658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:24,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:24,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:47:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067834359] [2024-11-14 05:47:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:24,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:47:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:47:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:47:24,013 INFO L87 Difference]: Start difference. First operand 718 states and 763 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 05:47:26,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:26,209 INFO L93 Difference]: Finished difference Result 717 states and 762 transitions. [2024-11-14 05:47:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:47:26,209 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 05:47:26,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:26,212 INFO L225 Difference]: With dead ends: 717 [2024-11-14 05:47:26,212 INFO L226 Difference]: Without dead ends: 717 [2024-11-14 05:47:26,212 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 05:47:26,213 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 2 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:26,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1839 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 05:47:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-14 05:47:26,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-11-14 05:47:26,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 429 states have (on average 1.7156177156177157) internal successors, (736), 711 states have internal predecessors, (736), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 762 transitions. [2024-11-14 05:47:26,226 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 762 transitions. Word has length 59 [2024-11-14 05:47:26,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:26,227 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 762 transitions. [2024-11-14 05:47:26,227 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 05:47:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 762 transitions. [2024-11-14 05:47:26,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 05:47:26,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:26,228 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 05:47:26,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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)] Ended with exit code 0 [2024-11-14 05:47:26,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:26,428 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:26,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1138270684, now seen corresponding path program 1 times [2024-11-14 05:47:26,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:26,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290340792] [2024-11-14 05:47:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:26,430 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 05:47:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:26,433 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:26,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:26,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 05:47:26,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:26,687 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 05:47:26,712 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 05:47:26,718 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 05:47:26,788 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 05:47:26,816 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 05:47:26,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:26,816 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:26,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290340792] [2024-11-14 05:47:26,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290340792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:26,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:26,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:47:26,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173628537] [2024-11-14 05:47:26,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:26,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:47:26,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:26,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:47:26,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:47:26,819 INFO L87 Difference]: Start difference. First operand 717 states and 762 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 05:47:29,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:29,667 INFO L93 Difference]: Finished difference Result 716 states and 761 transitions. [2024-11-14 05:47:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:47:29,668 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 05:47:29,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:29,669 INFO L225 Difference]: With dead ends: 716 [2024-11-14 05:47:29,669 INFO L226 Difference]: Without dead ends: 716 [2024-11-14 05:47:29,670 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 05:47:29,670 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:29,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1862 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-14 05:47:29,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-14 05:47:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2024-11-14 05:47:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 428 states have (on average 1.7172897196261683) internal successors, (735), 710 states have internal predecessors, (735), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:47:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 761 transitions. [2024-11-14 05:47:29,687 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 761 transitions. Word has length 59 [2024-11-14 05:47:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:29,687 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 761 transitions. [2024-11-14 05:47:29,688 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 05:47:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 761 transitions. [2024-11-14 05:47:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 05:47:29,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:29,689 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 05:47:29,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:29,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:29,890 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:29,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash 758878050, now seen corresponding path program 1 times [2024-11-14 05:47:29,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:29,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108486881] [2024-11-14 05:47:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:29,891 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 05:47:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:29,893 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:29,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:30,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:47:30,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:30,269 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 05:47:30,269 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:47:30,270 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108486881] [2024-11-14 05:47:30,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108486881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:30,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:30,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:47:30,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930069460] [2024-11-14 05:47:30,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:30,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:47:30,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:47:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:47:30,272 INFO L87 Difference]: Start difference. First operand 716 states and 761 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 05:47:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:30,325 INFO L93 Difference]: Finished difference Result 719 states and 765 transitions. [2024-11-14 05:47:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:47:30,326 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 05:47:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:30,329 INFO L225 Difference]: With dead ends: 719 [2024-11-14 05:47:30,329 INFO L226 Difference]: Without dead ends: 719 [2024-11-14 05:47:30,329 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 05:47:30,330 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 0 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:30,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2125 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:47:30,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-14 05:47:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2024-11-14 05:47:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 430 states have (on average 1.716279069767442) internal successors, (738), 713 states have internal predecessors, (738), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-14 05:47:30,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 765 transitions. [2024-11-14 05:47:30,348 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 765 transitions. Word has length 67 [2024-11-14 05:47:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:30,348 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 765 transitions. [2024-11-14 05:47:30,349 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 05:47:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 765 transitions. [2024-11-14 05:47:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 05:47:30,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:30,350 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 05:47:30,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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)] Ended with exit code 0 [2024-11-14 05:47:30,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:30,550 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:30,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:30,551 INFO L85 PathProgramCache]: Analyzing trace with hash -904884915, now seen corresponding path program 1 times [2024-11-14 05:47:30,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:30,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81061763] [2024-11-14 05:47:30,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:30,551 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 05:47:30,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:30,553 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:30,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:30,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:47:30,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:30,958 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 05:47:30,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:31,062 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 05:47:31,063 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:31,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81061763] [2024-11-14 05:47:31,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81061763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:31,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1741427332] [2024-11-14 05:47:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:31,064 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:47:31,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:47:31,069 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:47:31,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 05:47:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:31,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:47:31,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:31,627 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 05:47:31,627 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:31,665 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 05:47:31,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1741427332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122781850] [2024-11-14 05:47:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:31,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:47:31,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:47:31,669 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:47:31,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:47:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:31,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:47:31,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:32,011 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 05:47:32,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:32,058 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 05:47:32,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122781850] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:32,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:47:32,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2024-11-14 05:47:32,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586322613] [2024-11-14 05:47:32,059 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:47:32,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:47:32,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:47:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:47:32,061 INFO L87 Difference]: Start difference. First operand 719 states and 765 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 05:47:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:32,306 INFO L93 Difference]: Finished difference Result 731 states and 782 transitions. [2024-11-14 05:47:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:47:32,308 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 05:47:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:32,312 INFO L225 Difference]: With dead ends: 731 [2024-11-14 05:47:32,312 INFO L226 Difference]: Without dead ends: 731 [2024-11-14 05:47:32,312 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 05:47:32,313 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 8 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:32,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3536 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:47:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-14 05:47:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 729. [2024-11-14 05:47:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 439 states have (on average 1.715261958997722) internal successors, (753), 722 states have internal predecessors, (753), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-14 05:47:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 780 transitions. [2024-11-14 05:47:32,338 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 780 transitions. Word has length 68 [2024-11-14 05:47:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:32,339 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 780 transitions. [2024-11-14 05:47:32,339 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 05:47:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 780 transitions. [2024-11-14 05:47:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 05:47:32,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:32,340 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 05:47:32,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-14 05:47:32,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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)] Ended with exit code 0 [2024-11-14 05:47:32,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 05:47:32,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:47:32,941 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:32,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:32,942 INFO L85 PathProgramCache]: Analyzing trace with hash 964768290, now seen corresponding path program 2 times [2024-11-14 05:47:32,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:32,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159666161] [2024-11-14 05:47:32,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:47:32,943 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 05:47:32,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:32,947 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:32,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:33,430 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:47:33,431 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:47:33,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:47:33,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:33,541 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 05:47:33,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:33,828 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 05:47:33,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159666161] [2024-11-14 05:47:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159666161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1395390158] [2024-11-14 05:47:33,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:47:33,828 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:47:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:47:33,833 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:47:33,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 05:47:35,153 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:47:35,153 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:47:35,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:47:35,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:35,205 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 05:47:35,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:35,324 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 05:47:35,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1395390158] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:35,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058805117] [2024-11-14 05:47:35,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:47:35,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:47:35,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:47:35,327 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:47:35,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:47:44,711 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:47:44,711 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:47:44,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:47:44,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:44,759 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 05:47:44,760 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:44,875 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 05:47:44,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058805117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:44,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:47:44,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 14 [2024-11-14 05:47:44,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579813324] [2024-11-14 05:47:44,876 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:47:44,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:47:44,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:47:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:47:44,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:47:44,878 INFO L87 Difference]: Start difference. First operand 729 states and 780 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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 05:47:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:45,719 INFO L93 Difference]: Finished difference Result 744 states and 801 transitions. [2024-11-14 05:47:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:47:45,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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 71 [2024-11-14 05:47:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:45,724 INFO L225 Difference]: With dead ends: 744 [2024-11-14 05:47:45,724 INFO L226 Difference]: Without dead ends: 738 [2024-11-14 05:47:45,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-14 05:47:45,725 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 14 mSDsluCounter, 3541 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:45,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4252 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:47:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-14 05:47:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 738. [2024-11-14 05:47:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 448 states have (on average 1.7053571428571428) internal successors, (764), 731 states have internal predecessors, (764), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-14 05:47:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 791 transitions. [2024-11-14 05:47:45,744 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 791 transitions. Word has length 71 [2024-11-14 05:47:45,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:45,744 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 791 transitions. [2024-11-14 05:47:45,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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 05:47:45,745 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 791 transitions. [2024-11-14 05:47:45,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 05:47:45,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:45,749 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 05:47:45,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 05:47:45,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:46,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-14 05:47:46,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:47:46,350 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-14 05:47:46,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:46,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1005834818, now seen corresponding path program 3 times [2024-11-14 05:47:46,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:47:46,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874082199] [2024-11-14 05:47:46,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:47:46,352 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 05:47:46,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:47:46,354 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:46,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/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 05:47:47,008 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-14 05:47:47,008 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:47:47,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:47:47,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:47,243 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 05:47:47,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:48,087 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 05:47:48,087 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:47:48,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874082199] [2024-11-14 05:47:48,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874082199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:48,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723003844] [2024-11-14 05:47:48,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:47:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:47:48,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:47:48,090 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:47:48,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-14 05:47:52,230 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-14 05:47:52,231 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:47:52,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:47:52,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:52,307 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 05:47:52,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:47:52,559 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 05:47:52,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [723003844] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:47:52,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149555648] [2024-11-14 05:47:52,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:47:52,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:47:52,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:47:52,563 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:47:52,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c412edba-a3db-41c3-90a4-ac65d1a6dccd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process