./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje --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 a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:07:53,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:07:53,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 05:07:53,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:07:53,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:07:53,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:07:53,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:07:53,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:07:53,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:07:53,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:07:53,829 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:07:53,830 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:07:53,831 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:07:53,831 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:07:53,831 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:07:53,832 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:07:53,833 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:07:53,833 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:07:53,834 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:07:53,834 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:07:53,835 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:07:53,839 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:07:53,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:07:53,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:07:53,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:07:53,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:07:53,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:07:53,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:07:53,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:07:53,846 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:07:53,846 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:07:53,847 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:07:53,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:07:53,847 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:07:53,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:07:53,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:07:53,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:07:53,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:07:53,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:07:53,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:07:53,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:07:53,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:07:53,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:07:53,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:07:53,853 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:07:53,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:07:53,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:07:53,854 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:07:53,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:07:53,855 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 [2024-11-09 05:07:54,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:07:54,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:07:54,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:07:54,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:07:54,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:07:54,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i Unable to find full path for "g++" [2024-11-09 05:07:56,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:07:56,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:07:56,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2024-11-09 05:07:56,991 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data/cabe29a4f/ec61fc8a0b65439ab49df675482c7503/FLAGd6ecd647f [2024-11-09 05:07:57,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data/cabe29a4f/ec61fc8a0b65439ab49df675482c7503 [2024-11-09 05:07:57,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:07:57,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:07:57,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:07:57,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:07:57,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:07:57,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:57" (1/1) ... [2024-11-09 05:07:57,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a26bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:57, skipping insertion in model container [2024-11-09 05:07:57,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:07:57" (1/1) ... [2024-11-09 05:07:57,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:07:57,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:07:57,817 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) [2024-11-09 05:07:57,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@330ae1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:07:57, skipping insertion in model container [2024-11-09 05:07:57,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:07:57,819 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 05:07:57,821 INFO L158 Benchmark]: Toolchain (without parser) took 799.57ms. Allocated memory is still 144.7MB. Free memory was 108.9MB in the beginning and 89.5MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 05:07:57,822 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 96.5MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:07:57,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.64ms. Allocated memory is still 144.7MB. Free memory was 108.9MB in the beginning and 89.5MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 05:07:57,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 96.5MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.64ms. Allocated memory is still 144.7MB. Free memory was 108.9MB in the beginning and 89.5MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2999]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje --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 a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:08:00,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:08:00,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 05:08:00,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:08:00,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:08:01,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:08:01,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:08:01,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:08:01,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:08:01,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:08:01,022 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:08:01,022 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:08:01,023 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:08:01,023 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:08:01,027 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:08:01,028 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:08:01,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:08:01,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:08:01,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:08:01,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:08:01,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:08:01,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:08:01,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:08:01,034 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:08:01,034 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:08:01,034 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 05:08:01,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:08:01,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:08:01,036 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:08:01,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:08:01,036 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:08:01,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:08:01,037 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:08:01,037 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:08:01,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:08:01,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:08:01,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:08:01,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:08:01,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:08:01,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:08:01,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:08:01,042 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:08:01,042 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:08:01,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:08:01,043 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:08:01,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 [2024-11-09 05:08:01,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:08:01,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:08:01,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:08:01,678 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:08:01,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:08:01,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i Unable to find full path for "g++" [2024-11-09 05:08:04,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:08:05,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:08:05,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2024-11-09 05:08:05,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data/0efdc3613/7c37e2990679442cb5f7acbb50ebb4e9/FLAG426797975 [2024-11-09 05:08:05,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/data/0efdc3613/7c37e2990679442cb5f7acbb50ebb4e9 [2024-11-09 05:08:05,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:08:05,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:08:05,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:08:05,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:08:05,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:08:05,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:08:05" (1/1) ... [2024-11-09 05:08:05,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec13541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:05, skipping insertion in model container [2024-11-09 05:08:05,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:08:05" (1/1) ... [2024-11-09 05:08:05,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:08:05,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:08:06,013 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 05:08:06,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:08:06,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:08:06,101 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:08:06,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:08:06,254 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:08:06,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06 WrapperNode [2024-11-09 05:08:06,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:08:06,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:08:06,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:08:06,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:08:06,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,323 INFO L138 Inliner]: procedures = 187, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2024-11-09 05:08:06,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:08:06,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:08:06,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:08:06,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:08:06,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:08:06,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:08:06,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:08:06,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:08:06,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (1/1) ... [2024-11-09 05:08:06,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:08:06,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:08:06,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:08:06,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:08:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:08:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 05:08:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:08:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 05:08:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 05:08:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:08:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 05:08:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:08:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:08:06,481 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 05:08:06,704 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:08:06,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:08:07,101 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 05:08:07,102 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:08:07,311 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:08:07,311 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:08:07,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:08:07 BoogieIcfgContainer [2024-11-09 05:08:07,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:08:07,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:08:07,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:08:07,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:08:07,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:08:05" (1/3) ... [2024-11-09 05:08:07,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401a5142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:08:07, skipping insertion in model container [2024-11-09 05:08:07,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:08:06" (2/3) ... [2024-11-09 05:08:07,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401a5142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:08:07, skipping insertion in model container [2024-11-09 05:08:07,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:08:07" (3/3) ... [2024-11-09 05:08:07,324 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2024-11-09 05:08:07,346 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:08:07,346 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-11-09 05:08:07,346 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 05:08:07,411 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 05:08:07,451 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 64 flow [2024-11-09 05:08:07,493 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 139 states have (on average 2.223021582733813) internal successors, (309), 169 states have internal predecessors, (309), 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) [2024-11-09 05:08:07,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:08:07,546 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;@23c3e448, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:08:07,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 05:08:07,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 139 states have (on average 2.223021582733813) internal successors, (309), 169 states have internal predecessors, (309), 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) [2024-11-09 05:08:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-09 05:08:07,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:07,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-09 05:08:07,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:07,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash 6345, now seen corresponding path program 1 times [2024-11-09 05:08:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:07,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467860850] [2024-11-09 05:08:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:07,599 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 [2024-11-09 05:08:07,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:07,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:07,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:07,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:08:07,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:07,813 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 [2024-11-09 05:08:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:07,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:07,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:07,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467860850] [2024-11-09 05:08:07,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467860850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:07,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:07,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:08:07,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044349078] [2024-11-09 05:08:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:07,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:08:07,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:07,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:08:07,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:08:07,882 INFO L87 Difference]: Start difference. First operand has 170 states, 139 states have (on average 2.223021582733813) internal successors, (309), 169 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-09 05:08:08,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:08,030 INFO L93 Difference]: Finished difference Result 170 states and 309 transitions. [2024-11-09 05:08:08,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:08:08,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-09 05:08:08,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:08,048 INFO L225 Difference]: With dead ends: 170 [2024-11-09 05:08:08,048 INFO L226 Difference]: Without dead ends: 169 [2024-11-09 05:08:08,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:08:08,057 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:08,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:08:08,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-09 05:08:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-09 05:08:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 139 states have (on average 2.2158273381294964) internal successors, (308), 168 states have internal predecessors, (308), 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) [2024-11-09 05:08:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 308 transitions. [2024-11-09 05:08:08,120 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 308 transitions. Word has length 2 [2024-11-09 05:08:08,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:08,121 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 308 transitions. [2024-11-09 05:08:08,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-09 05:08:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 308 transitions. [2024-11-09 05:08:08,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-09 05:08:08,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:08,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-09 05:08:08,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 05:08:08,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:08,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:08,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash 6346, now seen corresponding path program 1 times [2024-11-09 05:08:08,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:08,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955116957] [2024-11-09 05:08:08,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:08,328 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 [2024-11-09 05:08:08,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:08,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:08,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:08,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:08:08,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:08,428 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 [2024-11-09 05:08:08,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:08,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:08,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955116957] [2024-11-09 05:08:08,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955116957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:08,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:08,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:08:08,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652486750] [2024-11-09 05:08:08,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:08,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:08:08,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:08,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:08:08,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:08:08,463 INFO L87 Difference]: Start difference. First operand 169 states and 308 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-09 05:08:08,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:08,593 INFO L93 Difference]: Finished difference Result 169 states and 308 transitions. [2024-11-09 05:08:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:08:08,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-11-09 05:08:08,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:08,597 INFO L225 Difference]: With dead ends: 169 [2024-11-09 05:08:08,597 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 05:08:08,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:08:08,600 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:08,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:08:08,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 05:08:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-09 05:08:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 139 states have (on average 2.20863309352518) internal successors, (307), 167 states have internal predecessors, (307), 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) [2024-11-09 05:08:08,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 307 transitions. [2024-11-09 05:08:08,641 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 307 transitions. Word has length 2 [2024-11-09 05:08:08,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:08,641 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 307 transitions. [2024-11-09 05:08:08,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-09 05:08:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 307 transitions. [2024-11-09 05:08:08,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:08:08,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:08,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:08,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:08,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:08,848 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:08,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:08,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1494257324, now seen corresponding path program 1 times [2024-11-09 05:08:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:08,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136828534] [2024-11-09 05:08:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:08,854 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 [2024-11-09 05:08:08,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:08,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:08,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:09,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:08:09,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:09,037 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 [2024-11-09 05:08:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:09,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:09,113 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:09,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136828534] [2024-11-09 05:08:09,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136828534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:09,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:09,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:08:09,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275982434] [2024-11-09 05:08:09,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:09,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:08:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:08:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:08:09,117 INFO L87 Difference]: Start difference. First operand 168 states and 307 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:09,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:09,340 INFO L93 Difference]: Finished difference Result 168 states and 307 transitions. [2024-11-09 05:08:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:08:09,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:08:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:09,349 INFO L225 Difference]: With dead ends: 168 [2024-11-09 05:08:09,350 INFO L226 Difference]: Without dead ends: 144 [2024-11-09 05:08:09,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:08:09,353 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 38 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:09,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 10 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:08:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-09 05:08:09,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-09 05:08:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 125 states have (on average 2.088) internal successors, (261), 143 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 261 transitions. [2024-11-09 05:08:09,388 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 261 transitions. Word has length 7 [2024-11-09 05:08:09,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:09,389 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 261 transitions. [2024-11-09 05:08:09,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 261 transitions. [2024-11-09 05:08:09,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:08:09,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:09,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:09,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:09,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:09,593 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:09,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1494257325, now seen corresponding path program 1 times [2024-11-09 05:08:09,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:09,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168330871] [2024-11-09 05:08:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:09,596 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 [2024-11-09 05:08:09,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:09,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:09,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:09,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:08:09,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:09,739 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 [2024-11-09 05:08:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:09,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:09,886 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:09,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168330871] [2024-11-09 05:08:09,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168330871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:09,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:09,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:08:09,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498327269] [2024-11-09 05:08:09,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:09,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:08:09,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:08:09,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:08:09,891 INFO L87 Difference]: Start difference. First operand 144 states and 261 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:10,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:10,094 INFO L93 Difference]: Finished difference Result 144 states and 261 transitions. [2024-11-09 05:08:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:08:10,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:08:10,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:10,097 INFO L225 Difference]: With dead ends: 144 [2024-11-09 05:08:10,097 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 05:08:10,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:08:10,099 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:10,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 12 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:08:10,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 05:08:10,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-09 05:08:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 111 states have (on average 1.936936936936937) internal successors, (215), 119 states have internal predecessors, (215), 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) [2024-11-09 05:08:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 215 transitions. [2024-11-09 05:08:10,111 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 215 transitions. Word has length 7 [2024-11-09 05:08:10,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:10,111 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 215 transitions. [2024-11-09 05:08:10,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 215 transitions. [2024-11-09 05:08:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:08:10,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:10,113 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:10,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:10,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:10,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:10,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1494864398, now seen corresponding path program 1 times [2024-11-09 05:08:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:10,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404161198] [2024-11-09 05:08:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:10,319 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 [2024-11-09 05:08:10,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:10,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:10,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:10,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:08:10,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:10,432 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 [2024-11-09 05:08:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:10,497 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:10,498 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404161198] [2024-11-09 05:08:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404161198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:08:10,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237934678] [2024-11-09 05:08:10,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:10,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:08:10,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:10,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:08:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:08:10,501 INFO L87 Difference]: Start difference. First operand 120 states and 215 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:10,666 INFO L93 Difference]: Finished difference Result 120 states and 215 transitions. [2024-11-09 05:08:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:08:10,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:08:10,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:10,669 INFO L225 Difference]: With dead ends: 120 [2024-11-09 05:08:10,669 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 05:08:10,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:08:10,671 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 32 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:10,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:08:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 05:08:10,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-09 05:08:10,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.8631578947368421) internal successors, (177), 99 states have internal predecessors, (177), 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) [2024-11-09 05:08:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 177 transitions. [2024-11-09 05:08:10,691 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 177 transitions. Word has length 7 [2024-11-09 05:08:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:10,692 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 177 transitions. [2024-11-09 05:08:10,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 177 transitions. [2024-11-09 05:08:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:08:10,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:10,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:10,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:10,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:10,894 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:10,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1494864399, now seen corresponding path program 1 times [2024-11-09 05:08:10,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:10,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321805336] [2024-11-09 05:08:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:10,896 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 [2024-11-09 05:08:10,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:10,899 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:10,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:08:11,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:08:11,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:08:11,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 05:08:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:08:11,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:08:11,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:08:11,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321805336] [2024-11-09 05:08:11,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321805336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:08:11,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:08:11,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:08:11,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695299518] [2024-11-09 05:08:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:08:11,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:08:11,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:08:11,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:08:11,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:08:11,139 INFO L87 Difference]: Start difference. First operand 100 states and 177 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:08:11,282 INFO L93 Difference]: Finished difference Result 100 states and 177 transitions. [2024-11-09 05:08:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:08:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:08:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:08:11,284 INFO L225 Difference]: With dead ends: 100 [2024-11-09 05:08:11,284 INFO L226 Difference]: Without dead ends: 75 [2024-11-09 05:08:11,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:08:11,288 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 28 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:08:11,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:08:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-09 05:08:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-09 05:08:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.7567567567567568) internal successors, (130), 74 states have internal predecessors, (130), 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) [2024-11-09 05:08:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 130 transitions. [2024-11-09 05:08:11,303 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 130 transitions. Word has length 7 [2024-11-09 05:08:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:08:11,304 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 130 transitions. [2024-11-09 05:08:11,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:08:11,304 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 130 transitions. [2024-11-09 05:08:11,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:08:11,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:08:11,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:11,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-09 05:08:11,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:11,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2024-11-09 05:08:11,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:08:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 737416442, now seen corresponding path program 1 times [2024-11-09 05:08:11,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:08:11,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255134764] [2024-11-09 05:08:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:08:11,508 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 [2024-11-09 05:08:11,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:08:11,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 05:08:11,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 05:08:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:08:11,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:08:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:08:11,731 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:08:11,732 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:08:11,733 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2024-11-09 05:08:11,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 16 remaining) [2024-11-09 05:08:11,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2024-11-09 05:08:11,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2024-11-09 05:08:11,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2024-11-09 05:08:11,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2024-11-09 05:08:11,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2024-11-09 05:08:11,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2024-11-09 05:08:11,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2024-11-09 05:08:11,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2024-11-09 05:08:11,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 16 remaining) [2024-11-09 05:08:11,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 16 remaining) [2024-11-09 05:08:11,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 16 remaining) [2024-11-09 05:08:11,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 16 remaining) [2024-11-09 05:08:11,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 16 remaining) [2024-11-09 05:08:11,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 16 remaining) [2024-11-09 05:08:11,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:08:11,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:08:11,947 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:08:11,972 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 05:08:11,972 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:08:11,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:08:11 BasicIcfg [2024-11-09 05:08:11,976 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:08:11,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:08:11,977 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:08:11,977 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:08:11,977 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:08:07" (3/4) ... [2024-11-09 05:08:11,979 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:08:11,980 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:08:11,981 INFO L158 Benchmark]: Toolchain (without parser) took 6886.06ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 70.0MB in the beginning and 45.2MB in the end (delta: 24.8MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2024-11-09 05:08:11,981 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 67.1MB. Free memory was 43.9MB in the beginning and 43.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:08:11,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1158.19ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 54.5MB in the end (delta: 15.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-09 05:08:11,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.98ms. Allocated memory is still 96.5MB. Free memory was 54.5MB in the beginning and 52.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:08:11,982 INFO L158 Benchmark]: Boogie Preprocessor took 38.78ms. Allocated memory is still 96.5MB. Free memory was 52.4MB in the beginning and 50.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:08:11,983 INFO L158 Benchmark]: RCFGBuilder took 947.68ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 54.4MB in the end (delta: -3.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-09 05:08:11,984 INFO L158 Benchmark]: TraceAbstraction took 4660.91ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 53.4MB in the beginning and 45.2MB in the end (delta: 8.2MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-09 05:08:11,984 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 117.4MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:08:11,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 67.1MB. Free memory was 43.9MB in the beginning and 43.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1158.19ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 54.5MB in the end (delta: 15.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.98ms. Allocated memory is still 96.5MB. Free memory was 54.5MB in the beginning and 52.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.78ms. Allocated memory is still 96.5MB. Free memory was 52.4MB in the beginning and 50.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 947.68ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 54.4MB in the end (delta: -3.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4660.91ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 53.4MB in the beginning and 45.2MB in the end (delta: 8.2MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 117.4MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3008]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3008. Possible FailurePath: [L2989-L2993] 0 struct s { int datum; pthread_mutex_t mutex; int list; } *A; [L3009] 0 pthread_t t1; [L3010] 0 A = malloc(sizeof(struct s)) [L3011] CALL 0 init(A,666) [L2995] 0 p->datum = x [L3011] RET 0 init(A,666) [L3012] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={2:0}, t1=-1] [L3013] CALL 0 update(&A->list) [L2999] 0 struct s *s = ((struct s *)((char *)(p)-(unsigned long)__builtin_offsetof (struct s, list))); VAL [A={2:0}, \old(p)={2:28}, p={2:28}, s={2:0}] [L3001] EXPR 0 s->datum [L3001] 0 s->datum++ [L3013] RET 0 update(&A->list) [L3014] 0 return 0; VAL [A={2:0}, \result=0, t1=-1] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3012]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 44 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 45 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 32 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:08:12,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ee6878f-e191-4af4-8b7f-f479bf41f121/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample