./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:55:38,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:55:38,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:55:38,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:55:38,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:55:38,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:55:38,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:55:38,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:55:38,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:55:38,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:55:38,888 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:55:38,888 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:55:38,889 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:55:38,891 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:55:38,891 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:55:38,892 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:55:38,892 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:55:38,894 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:55:38,917 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:55:38,918 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:55:38,918 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:55:38,919 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:55:38,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:55:38,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:55:38,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:55:38,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:55:38,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:55:38,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:55:38,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:55:38,923 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:55:38,923 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:55:38,924 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:55:38,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:55:38,924 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:55:38,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:55:38,925 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:55:38,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:55:38,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:55:38,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:55:38,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:38,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:55:38,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:55:38,928 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:55:38,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:55:38,929 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:55:38,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:55:38,930 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_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 [2023-11-06 20:55:39,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:55:39,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:55:39,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:55:39,348 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:55:39,350 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:55:39,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-06 20:55:42,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:55:42,716 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:55:42,717 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-06 20:55:42,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data/6a6460dfd/f54db1fe54764dd786450f5a7784ba13/FLAG8cdbea2d1 [2023-11-06 20:55:42,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data/6a6460dfd/f54db1fe54764dd786450f5a7784ba13 [2023-11-06 20:55:42,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:55:42,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:55:42,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:42,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:55:42,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:55:42,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:42" (1/1) ... [2023-11-06 20:55:42,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1070fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:42, skipping insertion in model container [2023-11-06 20:55:42,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:42" (1/1) ... [2023-11-06 20:55:42,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:43,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:43,120 ERROR L324 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) [2023-11-06 20:55:43,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2dea55d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:43, skipping insertion in model container [2023-11-06 20:55:43,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:43,122 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:55:43,124 INFO L158 Benchmark]: Toolchain (without parser) took 341.81ms. Allocated memory is still 199.2MB. Free memory was 170.1MB in the beginning and 163.1MB in the end (delta: 7.0MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-06 20:55:43,125 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:55:43,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.57ms. Allocated memory is still 199.2MB. Free memory was 169.9MB in the beginning and 163.1MB in the end (delta: 6.8MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-06 20:55:43,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.57ms. Allocated memory is still 199.2MB. Free memory was 169.9MB in the beginning and 163.1MB in the end (delta: 6.8MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 116]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:55:45,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:55:45,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:55:45,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:55:45,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:55:45,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:55:45,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:55:45,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:55:45,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:55:45,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:55:45,982 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:55:45,983 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:55:45,983 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:55:45,985 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:55:45,985 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:55:45,986 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:55:45,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:55:45,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:55:45,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:55:45,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:55:45,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:55:45,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:55:45,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:55:45,990 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:55:45,990 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:55:45,991 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:55:45,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:55:45,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:55:45,992 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:55:45,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:55:45,994 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:55:45,994 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:55:45,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:55:45,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:55:45,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:55:45,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:55:45,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:45,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:55:45,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:55:45,997 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:55:45,998 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:55:45,998 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:55:45,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:55:45,999 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 [2023-11-06 20:55:46,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:55:46,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:55:46,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:55:46,458 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:55:46,458 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:55:46,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-06 20:55:49,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:55:50,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:55:50,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2023-11-06 20:55:50,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data/82b192198/d5bb72f2d46d45d19be5933680d454e1/FLAG9afa35df8 [2023-11-06 20:55:50,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/data/82b192198/d5bb72f2d46d45d19be5933680d454e1 [2023-11-06 20:55:50,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:55:50,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:55:50,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:50,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:55:50,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:55:50,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296993e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50, skipping insertion in model container [2023-11-06 20:55:50,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:50,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:50,398 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:55:50,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:50,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:50,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:55:50,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:50,548 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:55:50,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50 WrapperNode [2023-11-06 20:55:50,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:50,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:55:50,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:55:50,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:55:50,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,637 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 186 [2023-11-06 20:55:50,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:55:50,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:55:50,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:55:50,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:55:50,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:55:50,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:55:50,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:55:50,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:55:50,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:50,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:55:50,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:55:50,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b56c764-5ac3-458f-a775-375695b1f622/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:55:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:55:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:55:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:55:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:55:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:55:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:55:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:55:50,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:55:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:55:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:55:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:55:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:55:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:55:50,836 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:55:50,976 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:55:50,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:55:51,766 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:55:51,781 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:55:51,783 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 20:55:51,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:55:51 BoogieIcfgContainer [2023-11-06 20:55:51,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:55:51,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:55:51,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:55:51,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:55:51,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:55:50" (1/3) ... [2023-11-06 20:55:51,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe14156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:55:51, skipping insertion in model container [2023-11-06 20:55:51,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (2/3) ... [2023-11-06 20:55:51,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe14156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:55:51, skipping insertion in model container [2023-11-06 20:55:51,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:55:51" (3/3) ... [2023-11-06 20:55:51,801 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2023-11-06 20:55:51,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:55:51,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-06 20:55:51,821 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:55:52,031 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 20:55:52,086 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:55:52,105 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 256 places, 270 transitions, 554 flow [2023-11-06 20:55:52,110 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 256 places, 270 transitions, 554 flow [2023-11-06 20:55:52,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 270 transitions, 554 flow [2023-11-06 20:55:52,265 INFO L124 PetriNetUnfolderBase]: 21/268 cut-off events. [2023-11-06 20:55:52,266 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 20:55:52,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 268 events. 21/268 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 567 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 161. Up to 2 conditions per place. [2023-11-06 20:55:52,284 INFO L119 LiptonReduction]: Number of co-enabled transitions 8508